New River at Old Stage Road, 01/24/2010, M. Sabatini Flood Control District of Maricopa County Engineering Division, Flood Warning Branch Storm Report : January 2010 Runoff Section Revised: Aug. 10, 2010 & Nov. 5, 2010 Final – 04/06/2010 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 TABLE OF CONTENTS Meteorology............................................................................................ 3 Precipitation ........................................................................................... 5 Runoff .................................................................................................. 16 Flood Forecasts ...................................................................................... 26 Flood Damages ....................................................................................... 28 Selected Data Sources .............................................................................. 29 Appendix A – 6-hour precip. Totals and Peak Intensities for all ALERT Rain Gages...... 30 TABLES Table I Table II Table III Table IV Table V Table VI Table VII Table VIII Table IX Table X Table XI Peak Wind Gusts Recorded at FCDMC Weather Stations......................... 3 Precipitation Frequency Estimates for Vulture Mine Rd. # 5260 ............... 8 Precipitation Frequency Estimates for Gladden # 5170 ......................... 9 Precipitation Frequency Estimates for Saddleback FRS # 5110 ............... 10 Precipitation Frequency Estimates for Sand Tank Wash # 6940 ............... 11 Precipitation Frequency Estimates for Queen Creek Rd. # 6610 .............. 12 Precipitation Frequency Estimates for Dreamy Draw Dam # 4800 ............ 13 Precipitation Frequency Estimates for New River Dam # 5610 ................ 14 Precipitation Frequency Estimates for Cooks Mesa # 5640..................... 15 Summary of Selected Streamflow Readings at FCD Stations................... 17 Summary of Selected Impoundment Readings at FCD Stations ................ 19 FIGURES Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Visible GOES-10 Satellite Photo, 21 Jan. 2010 21:00Z ........................... 3 Phoenix Weather Radar Image, 21 Jan. 2010 9:00 PM MST ..................... 4 NWS/HPC 5-day Rainfall Forecast ................................................... 5 Precipitation Map, 01/20/10-22:00 through 01/22/10-22:00 .................. 6 Location Map, Precip. Gages Used for Frequency Analysis ..................... 7 1-hour Rainfall Hyetograph for Vulture Mine Rd. # 5260 ........................ 8 1-hour Rainfall Hyetograph for Gladden # 5170 .................................. 9 1-hour Rainfall Hyetograph for Saddleback FRS # 5110 ........................ 10 1-hour Rainfall Hyetograph for Sand Tank Wash # 6940 ........................ 11 1-hour Rainfall Hyetograph for Queen Creek Rd. # 6610 ....................... 12 1-hour Rainfall Hyetograph for Dreamy Draw Dam # 4800 ..................... 13 1-hour Rainfall Hyetograph for New River Dam # 5610 ......................... 14 1-hour Rainfall Hyetograph for Cooks Mesa # 5640 .............................. 15 Streamflow Hydrograph – New River Fire Stream Gage # 5638................ 21 Streamflow Hydrograph – Cave Creek @ Spur Cross # 4923 .................... 21 Streamflow Hydrograph – Hassayampa River @ Box Canyon # 5308 .......... 21 Streamflow Hydrograph – Centennial Wash @ Wenden # 5093 ................ 22 Streamflow Hydrograph – Centennial Railroad # 5103 .......................... 22 Streamflow Hydrograph – Skunk Creek near New River # 5588................ 22 Streamflow Hydrograph – Cline Creek # 5583 .................................... 23 Streamflow Hydrograph – Skunk Creek @ I-17 # 5568 ........................... 23 Impoundment Hydrograph – Cave Buttes Dam # 4904 .......................... 24 Impoundment Hydrograph – Adobe Dam # 5539.................................. 24 Impoundment Hydrograph – New River Dam # 5614 ............................. 24 Impoundment Hydrograph – Rittenhouse FRS # 6703............................ 24 Forecast vs. Observed Hydrograph – Cave Cr. at Spur Cross Rd. .............. 25 Forecast vs. Observed Hydrograph – Cave Buttes Dam Pool ................... 25 Forecast vs. Observed Hydrograph – New River Dam Pool ..................... 26 Forecast vs. Observed Hydrograph – Centennial Wash @ Wenden ............ 26 Forecast vs. Observed Hydrograph – Hassayampa R. @ Box Canyon .......... 27 Forecast vs. Observed Hydrograph – Agua Fria R. near Rock Springs ........ 27 2 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 METEOROLOGY A moderately strong El Niño weather pattern was likely the main reason for the series of storms that moved across Arizona during the January 17 – 22 period. At this time of year the jet stream (area of strongest winds aloft) statistically tracks across the central Pacific and as it approaches the west coast moves northeast toward the Pacific Northwest. But during this series of events, due to the El Niño, the jet stream was located much farther south – crossing California and Arizona. This was important as storms typically follow the jet stream; so they too tracked much farther south, and resulted in a long fetch of moisture moving across the Pacific into California and Arizona. The first storm of consequence took place Tuesday, January 19, and resulted in an average of about an inch of rain across Maricopa County. Runoff from this storm was minimal due to rather low antecedent moisture in the soils. The next rain event developed Wednesday night. At least two fast moving weather disturbances moved through central Arizona, with the event lasting through Thursday night. The heaviest rain during this period was ahead and with a cold front that marched across central Arizona Thursday. Due to the combination of a wet atmosphere, strong dynamics, and ground that had become close to saturated due to the previous storm, heavy rain during this period quickly resulted in runoff/flooding. As a side note there were also strong gusty winds late Thursday – locally to over 60 mph. The bulk of the storm moved off to the east during the night Thursday. There were lingering showers Friday, mainly due to residual moisture and daytime heating, but no additional or new flooding of consequence. FIGURE 1 GOES-10 visible satellite photo of the eastern Pacific on Jan. 21, 2010 at 21:00 UTC (2:00 PM MST). Note the connection to moisture all the way down to Hawaii, and the cumulus clouds behind the front indicating very cold air. 3 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Figure 2 above shows a line of severe thunderstorms associated with the passage of a cold front at approximately 9:00 PM MST on 01/21/2010. Near this time, the Durango Complex weather station recorded a peak wind gust of 32 mph and barometric pressure of 995 millibars (29.39 in/Hg). Table I – Peak Wind Gusts Recorded by Maricopa County Weather Stations on the evening of Jan. 21, 2010 Station Name Location Peak Gust (mph) Bartlett Lake Carefree Ranch Durango Complex Gila Bend Landfill Horsethief Basin Lake Pleasant Mobile Rackensack Canyon South Mtn. Park NE Maricopa County NE Maricopa County Central Maricopa County SW Maricopa County Southern Yavapai County North-Central Maricopa Co. South-Central Maricopa Co. NE Maricopa County Central Maricopa County 44 35 32 37 63 43 37 72 31 4 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 PRECIPITATION Summary Statistics: Total FCDMC Automated Rain Gages Installed: 306 Number of Rain Gages which failed to operate during the storms: 7 Overall Percent Operational Automated Rain Gages for the Month: 98.8% For the month of January 2010, Number of gages recording more than: 10 inches of precipitation ------------- 4 8 inches --------------------------------- 10 7 inches --------------------------------- 14 6 inches --------------------------------- 23 5 inches --------------------------------- 61 4 inches ------------------------------- 108 3 inches ------------------------------- 198 FIGURE 3 This 5-day rainfall forecast was issued by the National Weather Service’s Hydrometeorological Prediction Center on January 17th at 3:35 PM MST for the period Sunday Jan. 17th 5:00 PM MST through Friday Jan. 22nd 5:00 PM MST. It was reasonably accurate, and alerted many emergency responders and the media as to the severity of expected rainfall in the coming week. 5 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Figure 4 above was created with ESRI ARCMap® using 48-hour rainfall totals from FCDMC ALERT gages and the “nearest neighbor” method to interpolate amounts between the gages. The amounts illustrate the effects of orographic lifting in this area of the State where storms moving generally east to west will drop larger amounts of precipitation as they move upslope. 6 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 RAINFALL STATISTICS AROUND THE COUNTY 8 1 2 7 6 5 3 4 Figure 5 1) Vulture Mine Rd. 5260 2) Gladden 5170 3) Saddleback FRS 5110 4) Sand Tank Wash 6940 5) Queen Cr. Rd. 6610 6) Dreamy Draw Dam 4800 7) New River Dam 5610 8) Cooks Mesa 5640 Rainfall amounts for all operational stations during this event are listed in Appendix A. These summaries include 6-hour period totals for January 18th through the 23rd, plus the peak 6-hour, 12-hour, 1-day, 2-day and 4-day intensities for each gage. These durations were chosen because they coincide with those provided in NOAA Atlas 14. Each column begins with a hyperlink to the gage’s history document which includes location information. In Figure 5 above, eight gages are chosen for detailed frequency analysis. These were chosen both to cover many areas of the County, and because they also collected data in January of 1993 – the last “really big” general rainfall event in the ALERT system record. In Tables II-IX below, peak rainfall amounts for durations of 6-hours to 7-days were calculated for this storm, and for the month of January 1993. Return periods in the form of Annual Exceedance Probability were interpolated for the Jan. 2010 durations. We see from the tables that amounts for this storm were generally greater than those from 1993 in all cases but one – Dreamy Draw Dam in east-central Phoenix. However, only two of the eight stations show truly impressive return periods: Gladden in the northwest County was greater than 80 years for durations of 1-4 days, and Cooks Mesa in the northeast County was greater than 500 years, also for durations of 1-4 days. Here again, orographic lifting is responsible for the larger rainfall amounts. 7 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table II below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Vulture Mine Road rain gage (5260). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE II - Precipitation Frequency Estimates (inches) for Vulture Mine Rd. # 5260 AEP 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 20 hr day day day day 30 day 45 day 60 day 2 0.29 0.43 0.54 0.73 0.90 1.00 1.06 1.27 1.50 1.75 1.83 2.15 2.44 2.69 3.35 3.90 4.59 5.15 5 0.42 0.64 0.79 1.07 1.32 1.46 1.51 1.77 2.06 2.42 2.56 2.98 3.37 3.72 4.60 5.37 6.36 7.12 10 0.51 0.77 0.96 1.29 1.60 1.76 1.83 2.11 2.44 2.88 3.06 3.55 4.02 4.42 5.40 6.32 7.51 8.39 25 0.63 0.95 1.18 1.59 1.97 2.16 2.25 2.57 2.94 3.50 3.72 4.30 4.84 5.31 6.38 7.51 8.93 9.93 50 0.71 1.08 1.34 1.81 2.24 2.47 2.59 2.92 3.33 3.97 4.22 4.87 5.48 5.99 7.08 8.36 9.97 11.05 100 0.80 1.21 1.50 2.03 2.51 2.78 2.93 3.29 3.71 4.47 4.74 5.46 6.12 6.68 7.76 9.20 10.99 12.12 200 0.89 1.35 1.67 2.25 2.78 3.09 3.30 3.66 4.11 4.97 5.27 6.06 6.78 7.38 8.42 10.02 11.99 13.17 500 1.00 1.52 1.89 2.54 3.15 3.51 3.80 4.19 4.64 5.66 5.98 6.89 7.67 8.31 9.27 11.07 13.29 14.52 1000 1.09 1.66 2.05 2.76 3.42 3.84 4.21 4.60 5.05 6.21 6.55 7.54 8.36 9.04 9.90 11.86 14.26 15.52 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  1.42 2.40 3.66 4.02 5.08 5.08 3 9 32 38 64 32 0.98 0.98 0.98 1.22 1.54 2.80 FIGURE 6 8 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table III below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Gladden rain gage (5170). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE III - Precipitation Frequency Estimates (inches) for Gladden # 5170 AEP 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 hr day day day 20 day 30 day 45 day 60 day 2 0.24 0.37 0.46 0.62 0.77 0.84 0.91 1.15 1.42 1.59 1.60 1.86 2.10 2.29 2.79 3.21 3.74 4.12 5 0.37 0.56 0.69 0.93 1.15 1.25 1.35 1.68 2.06 2.33 2.35 2.68 3.02 3.31 4.05 4.67 5.49 6.05 10 0.45 0.68 0.84 1.13 1.40 1.55 1.66 2.07 2.52 2.85 2.87 3.24 3.65 4.02 4.89 5.62 6.64 7.32 25 0.55 0.83 1.03 1.39 1.72 1.93 2.10 2.59 3.15 3.54 3.57 3.99 4.47 4.95 5.96 6.83 8.11 8.92 50 0.61 0.93 1.16 1.56 1.93 2.23 2.45 3.00 3.63 4.08 4.13 4.56 5.09 5.66 6.76 7.72 9.20 10.09 100 0.69 1.04 1.29 1.74 2.16 2.54 2.82 3.45 4.14 4.65 4.69 5.15 5.73 6.39 7.57 8.61 10.28 11.27 200 0.75 1.14 1.42 1.91 2.36 2.86 3.22 3.92 4.67 5.24 5.30 5.76 6.39 7.14 8.39 9.49 11.37 12.43 500 0.84 1.27 1.58 2.12 2.63 3.29 3.80 4.59 5.43 6.07 6.13 6.59 7.28 8.17 9.48 10.65 12.81 13.97 1000 0.90 1.37 1.70 2.29 2.83 3.63 4.27 5.15 6.04 6.74 6.81 7.25 7.97 8.97 10.33 11.53 13.91 15.15 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  2.91 3.78 4.49 4.61 5.16 5.16 43 61 82 91 101 54 0.39 0.55 0.71 0.75 1.22 1.69 FIGURE 7 9 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table IV below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Saddleback FRS rain gage (5110). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE IV - Precipitation Frequency Estimates (inches) for Saddleback FRS # 5110 AEP 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 20 30 hr day day day day day 45 day 60 day 2 0.26 0.39 0.49 0.65 0.81 0.90 0.95 1.10 1.22 1.29 1.37 1.55 1.73 1.88 2.17 2.51 2.88 3.13 5 0.38 0.58 0.72 0.97 1.21 1.33 1.39 1.59 1.76 1.89 1.99 2.26 2.51 2.74 3.18 3.68 4.24 4.61 10 0.47 0.71 0.88 1.19 1.47 1.64 1.72 1.94 2.14 2.30 2.42 2.75 3.06 3.35 3.87 4.45 5.14 5.59 25 0.57 0.87 1.08 1.45 1.80 2.05 2.15 2.42 2.65 2.87 2.98 3.41 3.77 4.15 4.74 5.43 6.28 6.82 50 0.65 0.98 1.22 1.64 2.03 2.36 2.51 2.79 3.04 3.31 3.41 3.92 4.33 4.77 5.41 6.17 7.13 7.72 100 0.72 1.10 1.36 1.83 2.27 2.68 2.88 3.19 3.45 3.76 3.86 4.45 4.90 5.42 6.09 6.90 7.97 8.63 200 0.79 1.21 1.50 2.02 2.50 3.01 3.28 3.61 3.88 4.24 4.32 5.01 5.49 6.08 6.77 7.63 8.80 9.51 500 0.89 1.35 1.68 2.26 2.79 3.47 3.86 4.22 4.49 4.91 4.95 5.78 6.31 7.01 7.70 8.60 9.91 10.68 1000 0.96 1.46 1.81 2.44 3.01 3.83 4.33 4.72 4.99 5.45 5.50 6.40 6.96 7.74 8.41 9.34 10.74 11.56 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  0.94 1.38 2.13 2.40 2.83 2.83 <2 3 8 10 11 8 0.47 0.59 0.75 1.10 1.61 2.05 FIGURE 8 10 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table V below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Sand Tank Wash rain gage (6940). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE V - Precipitation Frequency Estimates (inches) for Sand Tank Wash # 6940 AEP 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 20 30 45 hr day day day day day day 60 day 2 0.22 0.33 0.41 0.55 0.68 0.73 0.76 0.89 0.99 1.25 1.30 1.48 1.63 1.76 2.17 2.50 2.90 3.19 5 0.32 0.49 0.61 0.82 1.01 1.09 1.12 1.29 1.42 1.77 1.84 2.09 2.29 2.49 3.07 3.53 4.14 4.57 10 0.39 0.60 0.74 1.00 1.23 1.34 1.38 1.57 1.73 2.13 2.23 2.54 2.77 3.01 3.67 4.21 4.95 5.48 25 0.48 0.74 0.91 1.23 1.52 1.67 1.74 1.96 2.14 2.62 2.75 3.16 3.42 3.70 4.45 5.09 5.97 6.61 50 0.55 0.83 1.03 1.39 1.73 1.93 2.02 2.27 2.46 2.99 3.15 3.67 3.95 4.25 5.04 5.74 6.72 7.45 100 0.61 0.93 1.16 1.56 1.93 2.20 2.33 2.60 2.79 3.38 3.57 4.20 4.50 4.81 5.63 6.39 7.47 8.28 200 0.68 1.03 1.28 1.73 2.14 2.48 2.66 2.95 3.14 3.78 4.01 4.78 5.08 5.41 6.24 7.04 8.22 9.09 500 0.76 1.16 1.44 1.94 2.40 2.86 3.13 3.45 3.63 4.34 4.62 5.61 5.93 6.25 7.04 7.90 9.20 10.17 1000 0.83 1.26 1.56 2.10 2.60 3.16 3.52 3.86 4.04 4.78 5.11 6.29 6.63 6.92 7.67 8.56 9.94 10.98 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  0.75 0.75 0.83 0.94 1.81 1.81 <2 <2 <2 <2 3 3 0.24 0.35 0.55 0.75 1.18 1.46 FIGURE 9 11 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table VI below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Queen Creek Road rain gage (6610). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE VI - Precipitation Frequency Estimates (inches) for Queen Creek Road # 6610 AEP 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 20 hr day day day day 30 day 45 day 60 day 2 0.23 0.35 0.43 0.58 0.72 0.81 0.86 1.03 1.16 1.40 1.45 1.64 1.81 1.96 2.45 2.87 3.36 3.75 5 0.33 0.51 0.63 0.85 1.05 1.17 1.22 1.42 1.58 1.95 2.03 2.33 2.58 2.79 3.49 4.06 4.76 5.31 10 0.40 0.62 0.76 1.03 1.27 1.41 1.47 1.69 1.87 2.32 2.44 2.83 3.13 3.37 4.18 4.87 5.69 6.32 25 0.50 0.76 0.94 1.26 1.56 1.73 1.80 2.04 2.24 2.82 2.97 3.49 3.87 4.16 5.09 5.92 6.85 7.57 50 0.57 0.87 1.07 1.45 1.79 1.97 2.06 2.31 2.52 3.20 3.38 4.03 4.46 4.79 5.77 6.71 7.71 8.48 100 0.64 0.98 1.21 1.63 2.01 2.21 2.33 2.59 2.80 3.60 3.80 4.59 5.08 5.44 6.45 7.51 8.57 9.38 200 0.71 1.08 1.34 1.81 2.24 2.46 2.61 2.87 3.08 4.01 4.24 5.18 5.74 6.12 7.15 8.32 9.42 10.25 500 0.81 1.23 1.53 2.06 2.55 2.79 3.00 3.26 3.46 4.58 4.84 6.02 6.68 7.09 8.08 9.40 10.53 11.39 1000 0.88 1.34 1.67 2.24 2.77 3.05 3.31 3.57 3.75 5.03 5.31 6.70 7.43 7.86 8.80 10.24 11.37 12.23 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  1.18 1.18 1.57 1.85 3.03 3.03 3 2 3 4 13 9 0.47 0.67 1.02 1.10 1.81 2.56 FIGURE 10 12 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table VII below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Dreamy Draw Dam rain gage (4800). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE VII - Precipitation Frequency Estimates (inches) for Dreamy Draw Dam # 4800 AEP* 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 20 hr day day day day 30 day 45 day 60 day 2 0.23 0.35 0.43 0.58 0.72 0.83 0.89 1.06 1.19 1.39 1.51 1.70 1.91 2.08 2.57 3.02 3.51 3.88 5 0.34 0.51 0.64 0.86 1.06 1.20 1.26 1.46 1.63 1.95 2.14 2.44 2.75 2.97 3.68 4.32 5.01 5.53 10 0.41 0.63 0.78 1.04 1.29 1.45 1.52 1.75 1.93 2.34 2.59 2.96 3.35 3.62 4.43 5.20 6.01 6.61 25 0.51 0.77 0.96 1.29 1.59 1.78 1.87 2.11 2.31 2.86 3.20 3.68 4.17 4.48 5.40 6.34 7.27 7.95 50 0.58 0.88 1.09 1.47 1.82 2.03 2.15 2.40 2.60 3.26 3.67 4.26 4.82 5.17 6.13 7.20 8.22 8.94 100 0.65 0.99 1.23 1.65 2.05 2.28 2.43 2.69 2.89 3.67 4.16 4.87 5.50 5.89 6.88 8.08 9.16 9.92 200 0.73 1.10 1.37 1.84 2.28 2.53 2.72 2.98 3.19 4.10 4.68 5.51 6.24 6.66 7.63 8.97 10.11 10.88 500 0.82 1.25 1.55 2.09 2.59 2.87 3.12 3.38 3.58 4.70 5.40 6.43 7.27 7.73 8.66 10.18 11.38 12.16 1000 0.90 1.37 1.69 2.28 2.82 3.13 3.45 3.69 3.89 5.17 5.97 7.17 8.11 8.59 9.45 11.11 12.35 13.11 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  0.79 0.79 0.94 1.30 2.01 2.01 <2 <2 <2 <2 3 2 0.83 1.02 1.30 1.50 2.48 3.07 FIGURE 11 13 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table VIII below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the New River Dam rain gage (5610). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE VIII - Precipitation Frequency Estimates (inches) for New River Dam # 5610 AEP* 5 10 15 30 60 120 3 (1min min min min min min hr in-Y) 6 hr 12 hr 24 hr 48 4 7 10 20 hr day day day day 30 day 45 day 60 day 2 0.25 0.38 0.48 0.64 0.79 0.92 0.95 1.11 1.26 1.43 1.52 1.73 1.95 2.13 2.60 3.04 3.56 3.96 5 0.37 0.56 0.70 0.94 1.16 1.32 1.35 1.53 1.71 1.99 2.15 2.46 2.78 3.02 3.70 4.32 5.06 5.61 10 0.45 0.69 0.85 1.14 1.42 1.60 1.63 1.82 2.02 2.38 2.59 2.99 3.37 3.66 4.44 5.18 6.05 6.69 25 0.55 0.84 1.05 1.41 1.74 1.96 2.00 2.21 2.42 2.89 3.17 3.70 4.18 4.52 5.39 6.28 7.30 8.03 50 0.63 0.96 1.19 1.61 1.99 2.23 2.29 2.50 2.73 3.29 3.62 4.27 4.81 5.20 6.11 7.12 8.22 9.01 100 0.71 1.08 1.34 1.81 2.24 2.51 2.59 2.80 3.03 3.71 4.09 4.87 5.48 5.92 6.84 7.96 9.14 9.97 200 0.79 1.21 1.50 2.01 2.49 2.79 2.91 3.12 3.34 4.14 4.58 5.50 6.20 6.67 7.57 8.82 10.06 10.92 500 0.90 1.37 1.70 2.29 2.83 3.17 3.34 3.54 3.75 4.73 5.25 6.40 7.20 7.72 8.57 9.97 11.28 12.15 1000 0.98 1.50 1.86 2.50 3.09 3.47 3.69 3.88 4.08 5.19 5.79 7.13 8.02 8.57 9.33 10.85 12.19 13.07 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  0.91 1.46 2.56 2.64 3.62 3.62 <2 <2 14 11 23 13 0.71 0.91 1.38 2.09 2.32 2.60 FIGURE 12 14 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Table IX below is the NOAA Atlas 14 Point Precipitation Frequency Estimate Table at the latitude/longitude of the Cooks Mesa rain gage (5640). The red row lists the recorded rainfall values from 01/18-23/2010. The blue row is the interpolated return period in years for each duration. AEP is “Annual Exceedance Probability”. The black row shows a comparison to the rain amounts recorded for each duration in January of 1993. TABLE IX - Precipitation Frequency Estimates (inches) for Cooks Mesa # 5640 AEP* 5 10 15 30 60 120 (1min min min min min min in-Y) 3 hr 6 hr 12 hr 24 hr 48 hr 4 day 7 day 10 day 20 day 30 day 45 day 60 day 2 0.31 0.47 0.59 0.79 0.98 1.12 1.21 1.43 1.76 2.13 2.43 2.91 3.41 3.75 4.86 5.81 6.95 7.92 5 0.45 0.69 0.86 1.15 1.43 1.60 1.69 1.94 2.35 2.94 3.38 4.08 4.77 5.24 6.71 8.05 9.65 10.95 10 0.55 0.84 1.05 1.41 1.74 1.94 2.04 2.30 2.76 3.50 4.05 4.91 5.76 6.30 7.96 9.55 11.47 12.96 25 0.69 1.05 1.30 1.75 2.17 2.41 2.52 2.80 3.29 4.25 4.95 6.05 7.09 7.71 9.55 11.46 13.80 15.48 50 0.79 1.21 1.50 2.02 2.50 2.78 2.90 3.18 3.69 4.85 5.66 6.96 8.15 8.83 10.76 12.90 15.56 17.35 100 0.90 1.38 1.71 2.30 2.84 3.17 3.30 3.59 4.10 5.46 6.40 7.92 9.27 10.01 12.00 14.34 17.35 19.22 200 1.02 1.55 1.93 2.60 3.21 3.59 3.73 4.02 4.52 6.10 7.17 8.94 10.47 11.26 13.25 15.81 19.16 21.10 500 1.19 1.81 2.24 3.01 3.73 4.18 4.35 4.62 5.09 6.99 8.25 10.38 12.18 13.02 14.97 17.77 21.63 23.62 1000 1.32 2.01 2.49 3.36 4.16 4.66 4.86 5.11 5.58 7.70 9.12 11.56 13.58 14.46 16.32 19.29 23.55 25.55 Jan. 18 - 23, 2010  AEP Yea rs Jan. 06 - 18, 1993  2.40 4.45 7.32 8.43 10.43 10.43 12 178 690 577 515 195 1.54 2.48 4.09 5.94 6.81 8.70 FIGURE 13 15 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 This section revised Aug. 10, 2010 & Nov. 5, 2010 RUNOFF Roughly 91 percent of District streamgages recorded runoff during the event of January 21-22. Flow quantities varied greatly. Locations in the western, northwest, northern, and northeast parts of Maricopa County received the greatest runoff. Gage sites in Pinal County tended to have smaller peak runoff. Some stations received only minor runoff, amounts that would be expected during typical summer monsoonal thunderstorm activity. Stations along Indian Bend Wash and Arizona Canal Diversion Channel were higher than average, but not extraordinary. Flows in the East Maricopa Floodway were in the 1,000 cfs vicinity, which is higher than usual. Stations that did not record runoff were ACDC at 14th Street, Estrella Fan, Gila River at Maricopa Road, Pecos Inflow West, Powderhouse Wash, Pecos Inflow West, Powerline Floodway, Rawhide Wash, Reata Pass Wash, Sols Tributary at US93, South Mountain Fan, and Tatum Basin Inflow. The streams of New River and Cave Creek by far experienced the largest flows in many years. The computed discharge in Cave Creek (near Cave Creek) is 15,000 cfs which is the largest flow recorded since records began in 1958 and is in excess of a 50-year return period. The computed discharge at the Cave Creek (4893) gage station was 15,900 cfs at 12.1 feet gage height. Similarly, the flow on New River (near Rock Springs) is estimated at about 20,700 cfs, which would be the largest flow on New River since data collection began in 1962. The District’s New River Fire (5638) streamgage showed a much less impressive flow (7,500 cfs), and is thought to be too low. The Hassayampa River also had high flows. For instance, Hassayampa River at Box Canyon (Box Damsite – USGS) had a peak discharge estimated to be 26,000 cfs, which is the highest since September 1970 and the fourth greatest flow recorded since records began in 1927. About 21,000 cfs was recorded at the station near Morristown. Another significant flow occurred on Centennial Wash in two locations. The locations are well removed from one another and the large flow at the lower site is not related to the flow at the upper location. Beginning in the upper watershed, flow at Wenden on Centennial Wash neared seven feet depth, with an estimated discharge of 10,000 cfs. However, due to a significant vegetative obstruction to flow in the channel above the gage, this discharge value is suspect. Much farther downstream and at an earlier time, discharge at the railroad bridge, several miles upstream from the wash’s confluence with the Gila River is computed to be 8,000 cfs at about 14.0 feet gage height. The low chord of the railroad bridge is about 16 feet. This is the largest flow since 1993. The heavy rains in northern Maricopa County produced some record flows on smaller streams as well. Skunk Creek (near New River) experienced its highest discharge since installation in 1995. Discharge was approximately 2,000 cfs. Cline Creek had its highest peak flow since installation in 2001 of 1,225 cfs. Other notable discharges include 7,000 cfs at the Hassayampa River at I-10; 5,300 cfs at Skunk Creek at I-17; 4,570 cfs at Jackrabbit Wash above Wickenburg Road; about 3,000 cfs at Seven Springs Wash; 2,400 cfs at Tiger Wash above Eagle Eye Road; 1,600 cfs at Waterman Wash at Rainbow Valley Road; 1,100 cfs in Indian Bend Wash through 16 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 Scottsdale; 1,000 cfs at Fourth of July Wash and about 800 cfs each at Cruff Wash and Delaney Wash. Stations that were not functional during the event were Cave Creek near Cave Creek (4918-vandalism); Colter Channel at El Mirage Road (5408-unknown); Hassayampa River at US60 (5228-construction); IBW at Indian School Road (4618-construction) and Vulture Mine Road (5263-unknown). TABLE X - SUMMARY OF SELECTED STREAMFLOW READINGS AT FCD STATIONS STATION ID ACDC at 36th Street ACDC at 43rd Avenue ACDC at 67th Avenue Agua Fria at Buckeye Rd. Agua Fria at Grand Ave. Antelope Creek Bender Wash Berneil Wash Box Wash Bullard at Indian School Bullard Wash Casandro Wash Cave Creek Cave Creek near Cave Creek Cave Creek at Spur Cross Cave Creek Ashdale Cave Creek at Cactus Centennial near Aguila Centennial Wash at Wenden Centennial Levee Centennial Wash at SPRR Cline Creek Columbus Wash Copper Wash Cruff Wash Daggs Wash Delaney Wash Desert Hills Wash Dysart Drain at LAFB Dysart Drain at El Mirage EFCC near 7th Avenue El Mirage Drain EMF at Broadway Rd EMF at Queen Creek Rd EMF at Arizona Avenue 4808 4823 5523 5403 5503 7168 6963 4688 5273 6868 6863 7093 4893 4918 4923 4947 4833 5178 5093 5123 5103 5583 5013 5033 5078 5498 5108 4898 5413 5423 4668 5483 6573 6583 6598 PEAK STAGE (feet) 1.79 1.50 4.22 2.23 6.28 2.07 3.45 0.90 2.13 2.62 1.01 2.18 12.1 11.2 16.19 10.74 10.95 3.37 6.85 2.70 14.0 4.68 1.05 1.10 3.80 1.08 4.63 4.30 1.73 5.15 2.75 3.41 2.43 3.36 1.77 PEAK FLOW (cfs) 16 391 760 1,782 5,324 264 31 154 355 537 233 99 15,900 15,000 13,568 7,000 816 606 9,938 233 8,000 1,225 131 49 800 254 836 211 154 775 494 487 1,131 1,966 945 DATE - TIME 01/21/10 – 23:03 01/22/10 – 08:50 01/22/10 – 00:03 01/22/10 – 06:50 01/21/10 – 23:24 01/21/10 – 18:45 01/22/10 – 00:53 01/21/10 – 22:53 01/21/10 – 18:27 01/21/10 – 23:41 01/22/10 – 02:39 01/19/10 – 20:59 Unknown Unknown 01/21/10 – 21:00 01/21/10 – 19:41 01/21/10 – 22:39 01/21/10 – 22:57 01/22/10 – 04:08 01/21/10 – 12:44 01/22/10 – 02:45 01/21/10 – 21:16 01/21/10 – 21:03 01/21/10 – 19:01 01/21/10 – 20:53 01/21/10 – 20:33 01/21/10 – 06:28 01/21/10 – 21:00 01/21/10 – 22:00 01/21/10 – 21:04 01/21/10 – 22:00 01/21/10 – 21:10 01/22/10 – 00:19 01/22/10 – 03:32 01/22/10 – 07:44 17 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 STATION ID Flying E Wash Ford Canyon Wash Fourth of July Wash Gila River at Estrella Pkwy Gila River at 116th Ave Gila River at Olberg Granite Reef Granite Reef Wash Greene Wash at SR84 Guadalupe Channel Hartman Wash Hassayampa at Wagoner Hassayampa at Box Canyon Hassayampa at US60 Hassayampa at Morristown Hassayampa at I-10 IBW at Sweetwater IBW at Shea Blvd IBW near Indian Bend Rd IBW at McDonald Drive IBW at McKellips Road IBW Interceptor Jackrabbit Wash Lake Marguarite Martinez Creek McDowell Mtn Road McMicken Dam at Bell Rd McMicken Floodway New River at Bell Road New River at Glendale Ave Old Crosscut Price Drain Queen Creek at Rittenhouse Queen Creek at CAP Rainbow Wash Salt River at 67th Ave. Salt River at Priest Dr. Sand Tank at I-8 Santa Cruz at SR84 Santa Rosa at SR84 Sauceda Wash Scatter Wash Seven Springs Wash Skunk Creek near New River Skunk Creek at I-17 Skunk Tank Wash 7083 5428 5043 6853 6848 0783 4568 4728 0793 6603 7063 5352 5308 5228 5223 5283 4643 4693 4613 4628 4603 4623 5218 4678 7013 5923 5443 5438 5598 5508 4748 4573 6707 6723 6953 4758 4523 6933 0788 0798 6923 5543 4963 5588 5568 4888 PEAK STAGE (feet) 1.23 2.30 2.60 11.73 6.95 1.61 1.05 6.05 0.20 1.20 0.90 5.30 18.90 None 15.0 4.37 2.12 1.95 3.90 1.68 2.57 1.77 5.20 1.42 3.65 0.20 3.08 2.05 2.22 1.67 1.53 3.71 3.18 8.77 2.33 9.43 8.75 2.83 1.33 -0.10 2.60 1.75 8.26 4.29 4.59 6.10 PEAK FLOW (cfs) 108 302 995 18,528 26,316 928 385 479 15 221 108 1,690 26,000 None 21,000 7,015 274 654 1,032 1,188 883 149 4,570 179 153 13 331 155 1,654 2,285 266 199 307 926 650 11,200 25,000 603 80 318 152 122 2,985 2,000 5,362 213 DATE - TIME 01/21/10 – 14:00 01/21/10 – 20:35 01/21/10 – 19:09 01/23/10 – 06:15 01/23/10 – 03:20 01/24/10 – 02:32 01/21/10 – 22:44 01/21/10 – 21:47 Unknown 01/21/10 – 06:21 01/21/10 – 17:44 01/21/10 – 23:15 01/21/10 – 23:08 Out of Service Unknown 01/21/10 – 18:29 01/21/10 – 21:26 01/21/10 – 22:05 01/22/10 – 00:25 01/22/10 – 01:20 01/22/10 – 06:39 01/22/10 – 01:23 01/21/10 – 19:42 01/21/10 – 21:21 01/21/10 – 20:44 01/21/10 – 21:37 01/22/10 – 04:10 01/22/10 – 06:56 01/22/10 – 08:20 01/22/10 – 02:59 01/21/10 – 21:13 01/22/10 – 06:24 01/22/10 – 18:45 01/22/10 – 04:40 01/21/10 – 21:33 01/22/10 – 12:24 01/22/10 – 06:53 01/21/10 – 22:48 01/22/10 – 13:47 01/22/10 – 13:48 01/22/10 – 01:57 01/21/10 – 00:00 01/21/10 – 21:12 01/21/10 – 20:46 01/21/10 – 23:42 01/21/10 – 20:58 18 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 STATION PEAK STAGE (feet) ID Skunk Tank Wash Sols Wash at SR71 Sols Wash near Matthie Spookhill Brown Spookhill McKellips Spookhill McDowell Sun Valley at Northern Tiger Wash Upper Trilby Wash Vekol Wash Waterman at Rainbow Vly. Weekes Wash Baseline Winters at Indian School Winters Wash 4888 5276 7043 6693 6638 6637 5303 5163 5488 6983 6833 6753 5098 5118 PEAK FLOW (cfs) 6.10 0.70 1.31 2.64 3.75 4.85 1.00 7.85 1.30 6.09 7.50 0.85 3.42 2.66 DATE - TIME 213 81 690 48 47 47 250 2,404 28 755 1,590 53 966 425 01/21/10 – 01/21/10 – 01/21/10 – 01/22/10 – 01/22/10 – 01/22/10 – 01/21/10 – 01/21/10 – 01/21/10 – 01/22/10 – 01/22/10 – 01/22/10 – 01/21/10 – 01/21/10 – 20:58 21:32 21:39 10:04 12:41 09:51 18:34 20:25 19:32 00:15 02:16 01:10 19:52 19:54 NOTE: These discharge values should be considered estimates. Many will be updated as necessary upon verification of peak discharge by field methods. Check our website in July 2010, or the Water Year 2010 Annual Report issued in November 2010. One record impoundment was recorded during the month at Adobe Dam. Adobe Dam had an impoundment of 16.51 feet, or 1,355.06 feet. Other notable impoundments include Cave Buttes Dam, which reached a level of 1,622.7 feet or 62.7 feet gage height, and New River Dam peaked at nearly 42 feet gage height, or 1,431.4 feet. McMicken Dam had an impoundment for the first time in several years – the level was nearly 3 feet which translates to about 1,500 acre-feet of storage. Sunset FRS and Sunnycove FRS both had impoundments around 22 and 15 percent capacity respectively. In the southeast valley, Whitlow Ranch Dam had nearly 53 feet of impoundment. Magma FRS and Rittenhouse FRS both had 11-foot impoundments. Tat Momolikot Dam also had about 10 feet of water, which for that structure is a lot of water, but nowhere near its enormous capacity. Some stations that did not record any impoundment, or insignificant amounts, were Crossroads Park, Freestone Basin, Guadalupe FRS, Phoenix East Park Dam, Phoenix West Park Dam, White Tank FRS #3, and White Tank FRS #4. Only Buckeye #1 FRS was out of service during the event, due to vandalism. TABLE XI - SUMMARY OF SELECTED IMPOUNDMENTS AT FCD STATIONS STATION NAME 10th St. Wash Basin #1 Adobe Dam Pool Apache Junction FRS Aspen Dam Buckeye #2 FRS Buckeye #3 FRS ID 4818 5539 6673 5988 5208 6813 PEAK Gage Ht. (feet) 1.48 16.51 2.71 2.44 0.21 -1.08 PEAK STORAGE (acre-feet) 0.74 1,537.0 2.0 0.9 1.0 0 PEAK CAPACITY (% full) 3.4 8.1 0.3 0.5 0.1 0 DATE - TIME 01/21/10-22:49 01/22/10-02:13 01/22/10-00:21 01/21/10-21:29 01/21/10-22:34 01/21/10-21:03 19 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 STATION NAME Casandro Dam Cave Buttes Dam Pool Dreamy Draw Dam EFCC Basin #1 EFCC Basin #3 EFCC Basin #4 Golden Eagle Park Dam Harquahala FRS Hesperus Dam Laveen Basin Magma FRS McMicken Dam New River Dam Pool North Heights Dam Pecos Basin Sediment Pecos Basin Phoenix Basin 2A Phoenix Basin 2B Phoenix Basin # 3 Phoenix Dam # 4 Phoenix Dam # 7 Phoenix Dam # 99 Powerline FRS Reata Pass Dam Rittenhouse FRS Saddleback FRS Signal Butte FRS Spookhill FRS Stoneridge Dam Sunnycove FRS Sunridge Canyon Dam Sunset FRS Tat Momolikot Dam Tatum Basin Outflow Vineyard FRS Whitlow Ranch Dam ID PEAK Gage Ht. (feet) PEAK STORAGE (acre-feet) 7133 4904 4803 4648 4683 4658 5978 5128 5993 4578 6718 5448 5614 5983 6537 6538 4789 4778 4828 4838 4853 4843 6683 4938 6703 5113 6628 4563 5968 5248 5973 5233 0773 4653 6688 6739 6.19 62.70 3.92 1.05 0.23 1.85 7.88 8.19 2.13 7.43 1611.05 3.10 41.98 8.60 5.70 7.90 4.55 1.70 5.20 5.43 3.99 2.67 3.10 3.95 11.02 1.20 6.40 6.16 2.17 17.56 2.21 9.38 10.61 0.25 3.88 53.00 23.2 8,696.0 0 1.0 0 1.0 4.0 3.0 0 21.3 475.0 1,524.0 12,594.0 2.4 11.3 6.8 6.9 0.6 1.1 3.1 1.0 0 226.0 No Data 569.0 74.0 54.0 90.0 0.2 32.0 0 19.0 2,480.0 0.4 399.0 5,334.0 PEAK CAPACITY (% full) 16.0 18.6 0 1.7 0 1.4 4.1 0 0 15.2 8.5 7.6 28.9 1.7 24.6 1.9 11.5 1.3 1.7 7.2 0.8 0 5.1 No Data 14.4 1.1 3.3 3.5 0.3 14.8 0 22.1 1.2 1.2 10.9 15.0 DATE - TIME 01/21/10-21:53 01/23/10-23:39 01/21/10-20:54 01/21/10-21:06 Unknown Unknown 01/21/10-21:41 01/21/10-20:36 01/21/10-21:11 01/22/10-01:11 01/22/10-06:54 01/22/10-02:51 01/24/10-02:16 01/21/10-21:03 01/21/10-22:36 01/22/10-04:25 01/21/10-20:52 01/21/10-21:35 01/21/10-20:45 01/21/10-20:59 01/21/10-20:57 01/21/10-20:47 01/22/10-05:13 01/21/10-23:03 01/22/10-15:57 01/21/10-21:27 01/22/10-06:17 01/22/10-21:05 01/21/10-21:05 01/21/10-21:45 01/21/10-21:01 01/21/10-20:19 01/24/10-06:32 01/21/10-21:16 01/22/10-20:38 Undetermined Acronyms and Abbreviations used in Tables X & XI above: ACDC CAP EMF FRS Gila Hassy IBW LAFB Arizona Canal Diversion Channel Central AZ Project Canal East Maricopa Floodway Flood Retarding Structure Gila River Hassayampa River Indian Bend Wash Luke Air Force Base 20 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 SELECTED STREAMFLOW HYDROGRAPHS FIGURE 14 FIGURE 15 FIGURE 16 – not adjusted to reflect the new peak-discharge value of 26,000 cfs. 21 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FIGURE 17 FIGURE 18 FIGURE 19 22 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FIGURE 20 FIGURE 21 23 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 SELECTED IMPOUNDMENT HYDROGRAPHS FIGURE 22 FIGURE 23 FIGURE 24 FIGURE 25 24 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FLOOD FORECASTS Flood forecasts are provided to the Flood Control District through a cooperative agreement with the National Weather Services’ Colorado Basin River Forecast Center in Salt Lake City. Flood and impoundment forecasts for 50 points in and around Maricopa County are available 24/7 via a website. Data from several key forecast points were downloaded between 10:00 AM and noon on the 21st in anticipation of the coming runoff. The forecasts were used to systematize the actions of emergency responders, and in general modeled the peak flows and volumes very well – much better than for the winter event of February 2005. FIGURE 26 The red dots/ line show data collected at FCDMC gage # 4923 – Cave Cr. @ Spur Cross. This was an excellent forcast, missing the peak stage by only 0.2 feet and matching the hydrograph shape very well. The red dots/line show data collected at FCDMC gage # 4904 – Cave Buttes Dam Pool. The shape of the hydrograph matches well, but is translated in time and peak storage is significantly lower. This would indicate that there are soil / channel losses in the watershed that are not adequately accounted for in the forecast model. FIGURE 27 25 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FIGURE 28 The red dots/ line show data collected at FCDMC gage # 5093 – Centennial Wash @ Wenden. The general shape is very good, althogh the peak stage was over-forecast. It also appears that the forecast model is using an incorrect stage/discharge relationship. At 6.85 ft. / 9,940 cfs, the model scale shows a discharge near 18,000 cfs. The red dots/ line show data collected at FCDMC gage # 5614 – New River Dam Pool. The shape of the hydrograph matches well, and is slightly translated in time, but the peak storage is significantly lower. This would indicate that there are soil / channel losses in the watershed that are not adequately accounted for in the forecast model. Neither the USGS nor FCDMC gages on New River above the dam provided reliable data during the event. FIGURE 29 26 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FIGURE 30 The red dots/ line show data collected at FCDMC gage # 5308 – Hassayampa River @ Box Canyon. The shape of the hydrograph matches well, and is slightly translated in time, but the peak stage is significantly higher. This might indicate that rainfall input estimates for the model were too low. FIGURE 31 The red dots/ line show preliminary data collected at USGS gage # 0951 2800 –Agua Fria R. near Rock Springs. This was an excellent forcast, missing the peak stage by only a foot and matching the hydrograph shape very well. 27 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FLOOD DAMAGES IN MARICOPA COUNTY Two ALERT monitoring stations sustained damage on January 21st: Mt. Oatman (5000) repeater was blown over during the heavy wind episode, and the stream gage at Cave Creek (4893) was damaged by heavy runoff in Cave Creek. Below are estimates of damages, supplied by Maricopa County Department of Emergency Management, for a number of jurisdictions within Maricopa County. These estimated damages are priliminary and may be updated in a revision of this report. Agency Avondale, City of El Mirage, City of Gilbert, Town of Goodyear, City of Salt River Project Surprise, City of Tempe, City of Tolleson, City of Reimbursement Public Public Public Public Public Public Public Public Assistance Assistance Assistance Assistance Assistance Assistance Assistance Assistance 75/25 75/25 75/25 75/25 75/25 75/25 75/25 75/25 Total: Amount ($) 39,000 32,000 67,000 338,000 454,000 83,000 52,000 20,000 $1,085,000 In addition, damages were reported that are not being claimed under Public Assistance due to in-eligibility or because the jurisdiction will absorb the costs in the amount of $2,918,000.00. These include $1.8 M by the Flood Control District of Maricopa County, $358K by MCDOT that will not be reimbursed by FHWA, and $760K by MCDOT that is eligilble for reimbursement by FHWA. 28 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 SELECTED DATA SOURCES 1. National Weather Service, Hydrometeorological Design Studies Center, Silver Spring, MD - Precipitation Frequency Data Server for Arizona: http://dipper.nws.noaa.gov/hdsc/pfds/sa/az_pfds.html 2. National Weather Service, Colorado Basin River Forecast Center, Salt Lake City, UT: http://www.cbrfc.noaa.gov 3. National Weather Service, Hydrometeorological Prediction Center, Camp Springs, MD: http://www.hpc.ncep.noaa.gov 4. National Oceanic and Atmospheric Administration, National Environmental Satellite, Data and Information Service, Bethesda, MD: http://www.nesdis.noaa.gov 5. Flood Control District of Maricopa County, Phoenix, AZ: http://www.fcd.maricopa.gov 6. Maricopa County Department of Emergency Management, Phoenix, AZ: http://www.maricopa.gov/emerg_mgt/default.aspx The “Sentinel of the Desert” inundated by floodwaters behind New River Dam. Photo by Hal Warburton. 29 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 APPENDIX A: 6-hour precipitation totals and peak intensities for all ALERT rain gages FCD of Maricopa County ALERT System P1: Gages 0750-4505 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 770 dif precip in 775 dif precip in 780 dif precip in 785 dif precip in 795 dif precip in 4500 dif precip in 4505 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.12 0.43 0.00 0.04 0.00 0.00 0.12 0.08 0.08 0.12 0.16 0.28 0.00 0.20 0.08 0.35 0.00 0.08 0.08 0.00 0.04 0.04 0.12 0.00 0.04 0.00 0.79 0.00 0.00 0.00 0.63 0.04 0.00 0.35 0.79 0.04 0.00 0.31 1.02 0.00 0.00 0.00 1.93 0.00 0.00 0.12 0.91 0.28 0.12 0.16 0.79 0.39 0.12 0.28 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.12 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.79 0.04 0.00 0.00 0.75 0.00 0.00 0.00 0.31 0.00 0.00 0.00 0.79 0.00 0.00 0.00 0.55 0.08 0.00 0.00 0.75 0.08 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.69 1.97 2.44 2.05 3.39 2.24 2.56 0.83 0.87 1.02 1.22 1.93 0.71 0.91 1.10 1.50 2.40 1.10 1.10 1.38 1.65 2.01 1.93 2.01 2.24 2.56 3.35 0.91 1.14 1.50 1.61 2.24 0.75 1.06 1.57 1.73 2.56 Peak Intensities: 6-hour: 0.71 12-hour: 1.06 1-day: 1.10 2-day: 1.34 4-day: 1.61 30 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P2: Gages 4510-4555 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4510 dif precip in 4515 dif precip in 4520 dif precip in 4525 dif precip in 4530 dif precip in 4540 dif precip in 4550 dif precip in 4555 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.12 0.00 0.04 0.04 0.12 0.04 0.08 0.00 0.16 0.04 0.04 0.04 0.12 0.00 0.04 0.00 0.12 0.04 0.12 0.00 0.12 0.00 0.12 0.28 0.12 0.04 0.16 0.04 0.08 0.00 0.16 0.04 0.51 0.08 0.04 0.28 0.55 0.28 0.20 0.28 0.71 0.31 0.20 0.43 0.87 0.16 0.20 0.39 0.79 0.16 0.08 0.47 0.43 0.20 0.08 0.47 0.71 0.16 0.20 0.75 0.79 0.04 0.08 0.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.00 0.71 0.08 0.00 0.00 0.71 0.04 0.00 0.00 0.83 0.16 0.00 0.00 0.87 0.16 0.00 0.00 0.91 0.04 0.00 0.04 0.75 0.04 0.00 0.00 0.79 0.00 0.00 0.04 0.35 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.89 2.32 2.95 2.87 2.80 2.52 3.11 2.05 0.71 0.87 1.30 1.54 2.28 0.87 0.98 1.61 1.89 2.91 0.79 1.02 1.57 1.77 2.83 0.91 0.94 1.46 1.77 2.76 0.75 0.79 1.38 1.69 2.48 0.75 0.98 1.73 2.17 3.07 0.71 0.83 1.34 1.61 2.01 Peak Intensities: 6-hour: 0.71 12-hour: 0.79 1-day: 0.91 2-day: 1.14 4-day: 1.89 31 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P3: Gages 4560-4595 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4560 dif precip in 4565 dif precip in 4570 dif precip in 4575 dif precip in 4580 dif precip in 4585 dif precip in 4590 dif precip in 4595 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.24 0.12 0.00 0.24 0.08 0.16 0.04 0.24 0.08 0.16 0.00 0.04 0.04 0.12 0.00 0.00 0.00 0.28 0.00 0.04 0.12 0.04 0.00 0.00 0.00 0.04 0.04 0.24 0.00 0.12 0.00 0.12 0.04 0.91 0.20 0.12 0.59 1.02 0.28 0.16 0.75 0.87 0.24 0.31 0.35 1.10 0.31 0.16 0.20 0.87 0.24 0.20 0.43 0.08 0.04 0.16 0.20 0.47 0.12 0.28 0.20 0.51 0.31 0.31 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.87 0.04 0.00 0.00 0.87 0.04 0.00 0.04 0.94 0.12 0.00 0.00 0.63 0.12 0.00 0.00 0.91 0.04 0.00 0.04 0.83 0.00 0.00 0.00 0.67 0.04 0.00 0.04 0.71 0.04 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 3.23 3.70 3.15 2.64 3.19 1.46 2.48 2.72 0.94 1.30 2.20 2.68 3.62 0.94 1.06 1.73 2.01 3.11 1.10 1.38 1.77 1.89 2.64 0.91 0.98 1.73 2.17 3.15 0.67 0.75 1.06 1.38 2.13 0.71 0.87 1.42 1.65 2.44 Peak Intensities: 6-hour: 0.87 12-hour: 1.06 1-day: 1.77 2-day: 2.24 4-day: 3.15 4585 - this storm total appears to be low, but the gage was visited and no problem was found. 32 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P4: Gages 4600-4635 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4600 dif precip in 4605 dif precip in 4610 dif precip in 4615 dif precip in 4620 dif precip in 4625 dif precip in 4630 dif precip in 4635 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.12 0.00 0.20 0.04 0.12 0.00 0.16 0.00 0.16 0.00 0.04 0.00 0.16 0.00 0.04 0.00 0.16 0.00 0.00 0.08 0.08 0.00 0.04 0.00 0.04 0.00 0.28 0.00 0.08 0.00 0.31 0.00 0.71 0.08 0.24 0.20 0.71 0.16 0.39 0.00 0.91 0.28 0.08 0.35 0.63 0.16 0.08 0.31 0.59 0.28 0.04 0.31 0.94 0.28 0.08 0.31 0.55 0.24 0.59 0.04 0.55 0.28 0.24 0.24 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.91 0.00 0.04 0.00 0.67 0.12 0.00 0.00 0.91 0.04 0.00 0.04 0.75 0.08 0.00 0.00 0.83 0.08 0.00 0.04 0.75 0.08 0.00 0.00 0.75 0.04 0.00 0.04 0.87 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 2.56 2.32 2.95 2.24 2.56 2.72 2.72 2.76 0.91 1.14 1.57 1.81 2.80 0.75 0.83 1.18 1.38 2.20 0.83 0.91 1.26 1.46 2.40 0.91 1.18 1.57 1.73 2.56 0.75 1.10 1.57 1.77 2.64 0.91 0.94 1.26 1.65 2.64 Peak Intensities: 6-hour: 12-hour: 1-day: 2-day: 4-day: 4600 was down from 01/19 12:37 (13) through 01/22 06:39 (70) due to a plugged funnel; storm total was estimated from radar and nearby gages. 4605 was down from 01/19 10:36 (10) through 01/20 10:36 (30) due to a plugged funnel; storm total was estimated from radar and nearby gages. 33 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 34 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P5: Gages 4640-4675 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4640 dif precip in 4645 dif precip in 4650 dif precip in 4655 dif precip in 4660 dif precip in 4665 dif precip in 4670 dif precip in 4675 dif precip in 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.08 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.04 0.00 0.08 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.12 0.00 0.04 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.08 0.00 0.12 0.04 0.08 0.08 0.55 0.24 0.16 0.20 0.63 0.63 0.28 0.31 0.47 0.47 0.20 0.31 0.47 0.47 0.20 0.35 0.75 0.16 0.00 0.35 0.47 0.35 0.31 0.20 0.67 0.47 0.35 0.24 0.75 0.20 0.20 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.83 0.04 0.00 0.04 0.94 0.08 0.00 0.04 0.83 0.04 0.00 0.04 0.75 0.04 0.00 0.00 0.79 0.00 0.00 0.08 0.75 0.00 0.00 0.04 0.98 0.04 0.00 0.04 0.87 0.08 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.04 0.04 0.00 2.28 3.19 2.60 2.48 2.36 2.32 3.07 2.95 1.02 1.26 1.85 2.17 3.03 0.83 0.91 1.46 1.81 2.44 0.79 0.83 1.50 1.81 2.36 0.79 0.79 1.26 1.42 2.28 0.63 0.87 1.38 1.54 2.24 0.98 1.14 1.69 2.05 2.95 0.91 0.94 1.54 1.77 2.76 Peak Intensities: 6-hour: 0.87 12-hour: 0.87 1-day: 1.14 2-day: 1.46 4-day: 2.17 35 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P6: Gages 4680-4720 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4680 dif precip in 4685 dif precip in 4690 dif precip in 4695 dif precip in 4700 dif precip in 4710 dif precip in 4715 dif precip in 4720 dif precip in 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.08 0.00 0.08 0.12 0.12 0.00 0.08 0.00 0.20 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.55 0.47 0.24 0.28 0.67 0.24 0.16 0.31 0.55 0.24 0.20 0.24 0.63 0.16 0.35 0.28 0.75 0.16 0.08 0.20 0.67 0.08 0.08 0.24 0.67 0.16 0.12 0.16 0.55 0.16 0.08 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.83 0.08 0.04 0.00 0.83 0.04 0.00 0.00 0.75 0.04 0.00 0.04 0.83 0.04 0.00 0.00 0.59 0.08 0.00 0.00 0.55 0.08 0.00 0.00 0.55 0.04 0.04 0.00 0.59 0.00 0.00 0.04 0.00 0.04 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.72 2.52 2.52 2.76 1.93 1.77 1.89 1.73 0.83 0.87 1.38 1.54 2.40 0.75 0.83 1.22 1.54 2.40 0.83 0.91 1.34 1.69 2.60 0.75 0.91 1.18 1.26 1.93 0.67 0.71 1.06 1.14 1.77 0.67 0.79 1.06 1.14 1.85 0.51 0.63 0.98 1.06 1.73 Peak Intensities: 6-hour: 0.87 12-hour: 1.02 1-day: 1.54 2-day: 1.85 4-day: 2.60 36 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P7: Gages 4725-4765 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4725 dif precip in 4730 dif precip in 4740 dif precip in 4745 dif precip in 4750 dif precip in 4755 dif precip in 4760 dif precip in 4765 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.00 0.04 0.04 0.12 0.00 0.00 0.00 0.12 0.00 0.04 0.00 0.16 0.00 0.00 0.04 0.08 0.00 0.04 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.04 0.00 0.75 0.12 0.08 0.35 0.67 0.28 0.04 0.31 0.79 0.28 0.12 0.28 0.79 0.35 0.20 0.20 0.71 0.24 0.08 0.24 0.79 0.24 0.16 0.12 0.75 0.24 0.16 0.24 0.87 0.20 0.08 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.87 0.00 0.00 0.00 0.63 0.08 0.00 0.00 0.71 0.12 0.00 0.00 0.75 0.04 0.00 0.04 0.51 0.08 0.00 0.00 0.59 0.08 0.00 0.00 0.75 0.04 0.00 0.00 0.59 0.12 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 2.48 2.20 2.48 2.56 2.13 2.09 2.28 2.13 0.63 0.91 1.30 1.42 2.13 0.79 1.02 1.42 1.61 2.44 0.75 1.14 1.54 1.73 2.56 0.67 0.91 1.26 1.38 2.05 0.79 1.02 1.34 1.38 2.05 0.75 0.79 1.38 1.46 2.28 0.79 0.98 1.34 1.38 2.13 Peak Intensities: 6-hour: 0.71 12-hour: 0.87 1-day: 1.26 2-day: 1.54 4-day: 2.44 37 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P8: Gages 4770-4805 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4770 dif precip in 4775 dif precip in 4780 dif precip in 4785 dif precip in 4790 dif precip in 4795 dif precip in 4800 dif precip in 4805 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.04 0.00 0.00 0.00 0.00 0.00 0.12 0.20 0.04 0.04 0.04 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.08 0.00 0.08 0.00 0.20 0.00 0.00 0.00 0.16 0.08 0.16 0.00 0.00 0.12 0.59 0.20 0.28 0.28 0.55 0.20 0.16 0.35 0.51 0.12 0.12 0.24 0.55 0.24 0.35 0.31 0.59 0.24 0.12 0.31 0.28 0.31 0.16 0.31 0.43 0.20 0.16 0.16 0.47 0.24 0.12 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.83 0.08 0.04 0.00 0.75 0.08 0.00 0.04 0.67 0.08 0.00 0.00 0.87 0.12 0.00 0.04 0.71 0.04 0.00 0.00 0.71 0.08 0.00 0.00 0.79 0.00 0.00 0.00 0.67 0.04 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.00 0.00 2.44 2.52 1.93 2.68 2.28 2.28 2.13 2.20 0.75 0.83 1.22 1.57 2.44 0.71 0.75 0.98 1.18 1.85 0.98 0.98 1.42 1.89 2.64 0.75 0.79 1.22 1.38 2.17 0.71 0.71 1.06 1.50 2.13 0.79 0.79 0.94 1.30 2.01 0.67 0.75 1.10 1.34 2.09 Peak Intensities: 6-hour: 0.87 12-hour: 0.91 1-day: 1.26 2-day: 1.61 4-day: 2.36 38 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P9: Gages 4810-4845 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4810 dif precip in 4815 dif precip in 4820 dif precip in 4825 dif precip in 4830 dif precip in 4835 dif precip in 4840 dif precip in 4845 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.12 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.04 0.16 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.12 0.12 0.51 0.16 0.12 0.20 0.47 0.16 0.12 0.24 0.31 0.20 0.35 0.24 0.59 0.28 0.20 0.24 0.35 0.20 0.20 0.20 0.47 0.16 0.24 0.24 0.59 0.31 0.28 0.20 0.47 0.20 0.20 0.16 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.59 0.04 0.00 0.04 0.67 0.04 0.00 0.04 0.87 0.00 0.00 0.04 0.71 0.00 0.00 0.04 0.63 0.08 0.00 0.04 0.67 0.08 0.00 0.00 0.75 0.08 0.00 0.00 0.75 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.08 0.04 0.00 0.04 0.00 0.04 0.00 0.00 0.04 0.04 0.00 1.97 1.97 2.32 2.28 1.81 2.05 2.40 2.24 0.71 0.71 0.98 1.22 1.81 0.79 0.87 1.10 1.61 2.24 0.59 0.87 1.26 1.46 2.20 0.71 0.71 0.94 1.26 1.77 0.71 0.75 1.10 1.34 1.93 0.75 0.87 1.38 1.57 2.32 0.75 0.79 1.02 1.30 2.13 Peak Intensities: 6-hour: 0.59 12-hour: 0.71 1-day: 0.98 2-day: 1.22 4-day: 1.93 39 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P10: Gages 4850-4900 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4850 dif precip in 4855 dif precip in 4860 dif precip in 4875 dif precip in 4885 dif precip in 4890 dif precip in 4895 dif precip in 4900 dif precip in 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.28 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.04 0.00 0.08 0.00 0.16 0.00 0.04 0.00 0.12 0.00 0.08 0.00 0.12 0.04 0.08 0.00 0.51 0.00 0.00 0.00 0.12 0.00 0.47 0.35 0.08 0.20 0.63 0.24 0.35 0.12 0.79 0.59 0.31 0.31 1.42 0.47 0.24 0.39 1.69 0.83 0.47 0.79 1.26 0.63 0.43 0.51 1.38 0.94 0.47 0.71 0.55 0.43 0.35 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.79 0.04 0.00 0.00 0.63 0.04 0.04 0.00 0.83 0.08 0.00 0.04 0.43 0.16 0.00 0.04 0.75 0.12 0.00 0.04 0.94 0.24 0.00 0.12 0.83 0.12 0.00 0.04 1.06 0.24 0.00 0.04 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 2.17 2.17 3.19 3.46 5.04 4.92 5.24 3.15 0.63 0.87 1.30 1.46 2.09 0.83 1.38 1.97 2.09 3.11 1.57 1.93 2.48 2.72 3.35 1.89 2.60 3.74 3.98 4.84 1.26 1.89 2.87 3.07 4.57 1.65 2.40 3.46 4.06 5.04 1.06 1.26 1.65 2.24 3.11 Peak Intensities: 6-hour: 0.75 12-hour: 0.79 1-day: 1.10 2-day: 1.42 4-day: 2.01 40 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P11: Gages 4910-4960 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4910 dif precip in 4915 dif precip in 4920 dif precip in 4930 dif precip in 4935 dif precip in 4940 dif precip in 4950 dif precip in 4960 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.24 0.04 0.00 0.00 0.20 0.04 0.00 0.00 0.04 0.00 0.16 0.04 0.00 0.12 0.00 0.00 0.00 0.04 0.00 0.08 0.04 0.43 0.00 0.00 0.00 0.08 0.00 0.04 0.04 0.08 0.08 0.00 0.08 0.24 0.12 0.12 0.08 0.43 0.31 0.24 0.08 0.39 0.31 0.83 0.55 0.47 0.35 1.14 0.79 0.51 0.47 1.69 0.94 0.63 0.83 0.04 0.24 0.28 0.31 0.79 0.51 0.35 0.20 0.87 0.79 0.67 0.47 2.09 1.26 0.91 0.79 1.81 1.18 1.30 0.91 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.39 1.46 0.12 0.00 0.08 1.38 0.35 0.00 0.04 0.98 0.16 0.04 0.04 0.71 0.00 0.00 0.00 0.94 0.04 0.00 0.04 0.63 0.08 0.00 0.12 1.02 0.08 0.00 0.31 1.26 0.16 0.00 0.28 0.00 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.08 0.04 0.00 0.00 0.04 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.04 0.00 4.33 4.80 6.22 1.73 3.43 4.65 7.76 8.54 1.42 2.01 2.87 3.62 4.72 1.81 2.72 4.06 4.61 5.94 0.94 1.34 1.89 2.09 3.19 0.87 1.61 2.83 3.23 4.33 2.09 3.27 5.08 5.98 7.40 1.81 3.03 5.35 6.18 8.23 Peak Intensities: 6-hour: 1.57 12-hour: 1.73 1-day: 2.17 2-day: 3.07 4-day: 4.21 4930 - this storm total appears to be low, but the gage was visited and no problem was found. 41 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P12: Gages 4970-5060 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 4970 dif precip in 5000 dif precip in 5010 dif precip in 5030 dif precip in 5040 dif precip in 5050 dif precip in 5055 dif precip in 5060 dif precip in 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.35 0.04 0.43 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.93 1.18 1.46 0.91 0.63 0.47 0.35 0.35 1.14 0.63 0.31 0.28 0.59 0.79 0.31 0.35 1.18 1.02 0.51 0.35 0.94 0.59 0.47 0.24 0.39 1.54 1.61 0.87 0.98 0.39 0.35 0.79 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.91 0.08 0.00 0.16 0.47 0.43 0.00 0.04 0.43 0.31 0.00 0.00 0.39 0.28 0.00 0.00 0.75 0.12 0.00 0.04 0.47 0.28 0.00 0.00 0.87 0.43 0.00 0.16 1.06 0.39 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 7.87 2.80 3.15 2.72 4.02 3.07 5.98 4.02 1.50 1.97 2.36 2.52 3.15 1.06 1.54 2.05 2.17 2.72 1.69 2.48 3.07 3.39 4.02 1.18 1.65 2.24 2.44 3.07 1.54 2.95 4.49 5.00 5.98 1.46 1.54 2.52 2.87 4.02 Peak Intensities: 6-hour: 2.01 12-hour: 3.43 1-day: 5.51 2-day: 6.54 4-day: 7.68 5000 was down from 01/21 02:01 (30) through 01/27 15:20 (76) due to wind blowing over the tube; storm total was estimated from radar and nearby gages. 42 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P13: Gages 5065-5100 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5065 dif precip in 5070 dif precip in 5075 dif precip in 5080 dif precip in 5085 dif precip in 5090 dif precip in 5095 dif precip in 5100 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.04 0.08 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.67 0.71 0.87 0.87 0.31 0.24 1.02 0.83 0.55 0.35 0.47 0.16 0.59 0.35 1.18 0.59 1.02 0.63 1.50 0.83 1.30 0.67 0.67 1.18 0.67 0.47 0.67 1.14 0.28 0.35 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.51 0.24 0.00 0.04 0.55 0.39 0.00 0.00 0.71 0.28 0.00 0.04 0.43 0.08 0.00 0.04 0.51 0.16 0.00 0.00 0.12 0.24 0.00 0.00 0.91 0.28 0.00 0.00 0.59 0.16 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.12 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 3.19 3.50 3.35 3.03 4.53 4.06 4.21 2.91 1.06 1.38 2.44 2.72 3.50 1.02 1.54 2.17 2.48 3.35 1.18 1.61 2.32 2.56 3.03 1.69 2.44 3.78 4.02 4.49 1.97 2.72 3.46 3.54 4.02 1.50 2.05 2.99 3.23 4.21 1.10 1.42 2.01 2.17 2.91 Peak Intensities: 6-hour: 0.98 12-hour: 1.57 1-day: 2.32 2-day: 2.76 4-day: 3.15 43 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P14: Gages 5105-5140 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5105 dif precip in 5110 dif precip in 5115 dif precip in 5120 dif precip in 5125 dif precip in 5130 dif precip in 5135 dif precip in 5140 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.83 1.02 0.39 1.10 0.12 0.91 0.20 0.91 0.79 0.91 0.39 1.18 0.12 0.94 0.94 1.02 0.39 0.63 0.35 1.14 0.04 0.87 0.94 0.75 0.55 0.55 0.39 1.14 0.16 0.55 0.47 0.87 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.51 0.28 0.00 0.04 0.39 0.24 0.00 0.00 0.67 0.31 0.00 0.04 0.55 0.28 0.12 0.00 0.47 0.12 0.00 0.00 0.55 0.20 0.00 0.04 0.67 0.28 0.00 0.00 0.31 0.24 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 4.17 2.83 4.29 4.06 3.19 3.66 3.70 2.68 0.94 1.38 2.13 2.40 2.83 1.34 1.85 3.23 3.50 4.29 1.42 2.13 3.03 3.50 4.06 1.26 1.65 2.44 2.80 3.15 0.98 1.73 2.64 3.11 3.58 1.22 1.61 2.72 3.03 3.70 0.83 1.34 2.05 2.28 2.68 Peak Intensities: 6-hour: 1.46 12-hour: 1.93 1-day: 3.31 2-day: 3.62 4-day: 4.17 44 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P15: Gages 5145-5180 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5145 dif precip in 5150 dif precip in 5155 dif precip in 5160 dif precip in 5165 dif precip in 5170 dif precip in 5175 dif precip in 5180 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.08 0.00 0.04 0.04 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.24 0.94 1.06 0.75 0.43 1.22 0.63 0.71 0.75 1.77 0.87 0.59 0.08 0.51 0.75 0.98 0.24 1.42 1.02 0.71 0.59 2.60 0.71 0.55 0.35 0.98 0.83 0.63 0.31 0.51 0.63 0.83 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.47 0.24 0.00 0.04 0.08 0.24 0.00 0.00 0.35 0.24 0.00 0.04 0.35 0.24 0.00 0.08 0.87 0.35 0.00 0.12 0.24 0.28 0.00 0.04 0.31 0.20 0.00 0.08 0.59 0.20 0.00 0.12 0.04 0.00 0.12 0.00 0.08 0.00 0.04 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.16 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.08 0.00 3.90 3.50 4.84 3.11 5.04 5.28 3.54 3.35 1.50 2.17 2.99 3.07 3.46 2.01 2.99 4.02 4.13 4.80 0.98 1.65 2.32 2.64 3.07 1.38 2.44 3.43 4.06 5.00 2.91 3.78 4.49 4.61 5.16 1.02 1.97 2.80 2.87 3.46 0.83 1.34 2.05 2.28 2.68 Peak Intensities: 6-hour: 1.06 12-hour: 2.01 1-day: 2.99 2-day: 3.35 4-day: 3.90 45 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P16: Gages 5185-5220 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5185 dif precip in 5190 dif precip in 5195 dif precip in 5200 dif precip in 5205 dif precip in 5210 dif precip in 5215 dif precip in 5220 dif precip in 0.00 0.12 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.08 0.04 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.04 0.04 0.00 0.00 0.00 0.75 3.07 1.26 0.79 0.35 0.75 0.51 0.43 0.35 1.30 0.98 0.94 0.79 0.43 0.24 0.63 0.67 0.59 0.35 0.51 1.02 0.43 0.12 0.71 0.67 0.83 0.98 1.38 0.43 0.83 0.67 0.98 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.55 0.47 0.00 0.12 0.16 0.24 0.00 0.04 0.67 0.24 0.00 0.16 0.79 0.35 0.00 0.04 0.79 0.20 0.00 0.04 0.75 0.16 0.00 0.00 0.79 0.20 0.00 0.12 0.83 0.20 0.00 0.12 0.04 0.00 0.12 0.00 0.04 0.04 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 7.48 2.68 4.80 3.27 3.19 3.23 5.16 4.37 1.26 2.24 3.66 4.06 4.80 1.02 1.22 2.09 2.44 3.27 0.91 1.26 2.13 2.40 3.15 1.06 1.34 2.28 2.56 3.23 1.61 2.60 3.90 4.17 5.08 1.10 1.81 2.87 3.39 4.25 Peak Intensities: 6-hour: 3.39 12-hour: 4.88 1-day: 5.87 2-day: 5.98 4-day: 7.17 5190 - this storm total appears to be low (likely due to high wind exposure), but the gage was visited and no problem was found. 46 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P17: Gages 5225-5270 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5225 dif precip in 5230 dif precip in 5240 dif precip in 5245 dif precip in 5250 dif precip in 5260 dif precip in 5265 dif precip in 5270 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ____ ____ ____ ____ 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.04 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ____ ____ ____ ____ 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.67 1.54 1.14 0.91 0.39 1.18 0.91 0.79 0.67 1.14 0.83 1.18 0.39 1.10 0.98 0.98 ____ ____ ____ ____ 0.55 1.34 1.02 0.79 0.63 0.98 0.87 1.26 0.87 1.42 0.75 0.91 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ____ ____ ____ ____ 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 1.10 0.39 0.00 0.20 0.87 0.24 0.00 0.12 0.98 0.16 0.00 0.08 0.87 0.28 0.00 0.12 ____ ____ ____ ____ 1.10 0.00 0.00 0.12 1.10 0.31 0.00 0.08 0.91 0.16 0.00 0.16 0.00 0.00 0.12 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 ____ ____ ____ ____ 0.00 0.00 0.16 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 6.18 4.69 5.12 4.80 0.00 5.08 5.39 5.31 1.18 2.09 3.27 3.66 4.61 1.34 2.32 3.82 4.25 5.08 1.42 2.40 3.66 4.02 5.08 1.54 2.40 3.74 4.41 5.31 1.65 2.68 3.98 4.49 5.31 Peak Intensities: 6-hour: 1.57 12-hour: 2.83 1-day: 4.17 2-day: 4.84 4-day: 6.18 5245 was down from 01/20 23:06 (76) through 01/24 17:06 (164) due to a plugged funnel; rainfall estimated from radar and nearby gages. 5250 - station was out of service during this period. 47 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 48 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P18: Gages 5275-5340 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5275 dif precip in 5280 dif precip in 5290 dif precip in 5300 dif precip in 5305 dif precip in 5320 dif precip in 5335 dif precip in 5340 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.24 0.20 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.00 0.16 0.00 0.08 0.08 0.00 0.00 0.00 0.04 0.00 0.28 0.75 0.67 0.71 0.83 0.31 0.28 0.67 0.12 0.31 1.02 0.75 0.83 0.55 0.43 0.75 0.47 0.87 0.75 0.51 0.75 1.26 1.02 0.67 0.71 0.98 1.50 0.55 1.85 5.00 1.54 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.04 0.00 0.35 0.24 0.00 0.08 0.98 0.47 0.00 0.04 0.63 0.04 0.00 0.24 0.83 0.35 0.00 0.00 0.67 0.12 0.00 0.12 0.75 0.12 0.04 0.20 0.67 0.20 0.04 0.24 0.00 0.08 0.00 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.00 0.00 0.04 0.08 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.00 0.00 3.46 3.58 3.86 3.78 3.70 5.20 5.16 8.70 1.30 1.46 2.09 2.68 3.58 1.06 1.81 2.24 2.76 3.62 1.10 1.42 2.56 2.87 3.78 0.91 1.61 2.60 2.80 3.66 1.46 2.56 3.70 4.02 5.08 1.73 2.80 3.70 3.90 5.04 Peak Intensities: 6-hour: 0.83 12-hour: 1.54 1-day: 2.40 2-day: 2.68 4-day: 3.39 5340 – this gage was likely storing snow when hit by the rains of the 21st, therefore the recorded rainfall intensity values are unrealistic. 49 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P19: Gages 5350-5425 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5350 dif precip in 5365 dif precip in 5380 dif precip in 5400 dif precip in 5405 dif precip in 5410 dif precip in 5415 dif precip in 5425 dif precip in 0.00 0.00 0.04 0.04 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 ____ ____ ____ ____ 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.12 0.20 0.12 0.00 0.24 0.00 0.20 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.91 1.69 0.83 0.79 0.79 1.06 0.83 0.20 0.98 2.95 0.31 0.00 0.75 0.24 0.31 0.28 0.75 0.28 0.24 0.59 0.71 0.35 0.47 0.83 0.94 0.63 0.39 0.79 1.30 1.18 0.87 0.98 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.00 0.00 0.28 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.24 0.00 0.00 0.04 0.00 0.47 0.08 0.00 0.24 0.59 0.00 0.00 0.20 0.00 0.08 0.00 0.00 0.63 0.12 0.00 0.04 0.91 0.24 0.00 0.04 1.10 0.39 0.00 0.04 1.02 0.08 0.04 0.04 0.91 0.31 0.00 0.04 0.08 0.00 0.00 0.00 0.08 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 5.79 4.33 4.72 2.56 3.07 4.06 4.29 5.75 1.22 1.50 2.36 2.99 4.02 1.14 1.57 2.72 3.31 4.25 1.73 2.68 4.29 4.61 5.71 Peak Intensities: 6-hour: 1.85 12-hour: 3.03 1-day: 4.17 2-day: 4.72 4-day: 5.55 1.46 2.32 2.99 3.31 4.17 0.67 0.94 1.54 1.77 2.56 5380 – some, but not all precipitation fell as snow and melted after 01/23. 5405 was down from 01/20 12:47 (51) through 01/27 10:14 (98) due to transmitter (and memory) failure; rainfall estimated from radar and nearby gages. 50 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 51 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P20: Gages 5430-5465 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5430 dif precip in 5435 dif precip in 5440 dif precip in 5445 dif precip in 5450 dif precip in 5455 dif precip in 5460 dif precip in 5465 dif precip in 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.00 0.00 0.00 0.16 0.00 0.00 0.00 0.16 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.83 0.00 0.16 0.39 1.02 1.18 0.55 0.63 0.00 0.00 0.00 0.00 1.06 1.30 0.59 0.79 0.67 0.55 0.43 0.75 0.59 0.47 0.47 0.83 0.63 0.51 0.55 0.79 1.18 1.22 0.59 0.75 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.14 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.83 0.24 0.00 0.04 0.63 0.20 0.00 0.04 0.83 0.24 0.00 0.00 0.67 0.24 0.00 0.00 0.75 0.16 0.00 0.04 0.79 0.24 0.00 0.04 0.79 0.16 0.00 0.00 0.75 0.08 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 2.80 4.29 2.20 4.69 3.58 3.70 3.82 4.61 1.81 2.52 3.74 3.98 4.69 0.91 1.34 2.40 2.80 3.50 0.98 1.38 2.36 2.68 3.58 0.98 1.38 2.48 2.87 3.66 1.69 2.52 3.74 3.78 4.61 Peak Intensities: 6-hour: 12-hour: 1-day: 2-day: 4-day: 1.69 2.36 3.31 3.58 4.29 5430 - this storm total appears to be low (likely due to high wind exposure), but the gage was visited and no problem was found. 52 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 5440 was down from 01/19 23:54 (29) through 01/28 08:52 due to a plugged funnel; this gage has two prior estimates this year; no estimate was made and the record will be considered ineffectual for this year. 53 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P21: Gages 5470-5505 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5470 dif precip in 5475 dif precip in 5480 dif precip in 5485 dif precip in 5490 dif precip in 5495 dif precip in 5500 dif precip in 5505 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.16 0.08 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.79 0.79 0.47 0.75 1.02 0.51 0.83 0.87 0.63 0.87 0.47 0.79 1.02 1.57 1.26 0.91 0.75 1.06 0.94 0.91 0.71 0.94 0.87 1.06 0.98 0.51 0.47 0.63 0.63 0.31 0.39 0.55 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.43 0.28 0.00 0.00 1.14 0.16 0.00 0.08 0.71 0.20 0.00 0.08 0.98 0.16 0.00 0.24 0.83 0.20 0.00 0.12 0.98 0.24 0.08 0.04 1.18 0.28 0.00 0.04 0.83 0.28 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.12 0.00 0.04 0.00 0.12 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.08 0.04 0.00 3.70 5.00 3.86 6.38 5.20 5.12 4.17 3.11 1.26 1.89 3.23 3.82 4.88 1.18 1.73 2.76 3.19 3.86 1.89 3.27 4.76 5.20 6.26 1.30 2.28 3.66 4.21 5.08 1.34 2.17 3.54 4.17 5.04 1.30 1.50 2.60 3.19 4.21 0.91 1.10 1.89 2.20 3.11 Peak Intensities: 6-hour: 1.10 12-hour: 1.61 1-day: 2.80 2-day: 2.87 4-day: 3.58 54 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P22: Gages 5510-5555 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5510 dif precip in 5515 dif precip in 5520 dif precip in 5525 dif precip in 5535 dif precip in 5545 dif precip in 5550 dif precip in 5555 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.08 0.16 0.12 0.12 0.00 0.00 0.00 0.04 0.43 0.00 0.20 0.08 1.10 0.55 0.39 0.71 1.26 0.87 0.39 0.79 0.91 0.51 0.59 0.47 0.63 0.28 0.43 0.55 1.02 0.47 0.43 0.51 1.30 0.79 0.55 0.83 0.71 0.51 0.39 0.24 1.73 1.57 1.10 1.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.87 0.24 0.04 0.04 0.75 0.20 0.00 0.08 0.98 0.24 0.00 0.04 0.75 0.28 0.04 0.00 0.91 0.28 0.00 0.04 0.98 0.20 0.00 0.04 0.94 0.24 0.00 0.00 1.06 0.35 0.04 0.20 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.04 0.04 0.00 4.02 4.41 3.94 3.23 3.78 5.31 3.31 8.03 1.73 2.24 3.31 3.70 4.41 1.02 1.57 2.44 2.91 3.86 0.83 1.06 1.89 2.20 3.11 1.10 1.65 2.40 2.83 3.70 1.61 2.28 3.43 3.90 5.16 1.10 1.30 1.89 2.32 3.27 2.28 3.70 5.43 6.14 7.83 Peak Intensities: 6-hour: 1.30 12-hour: 1.73 1-day: 2.72 2-day: 3.19 4-day: 4.02 55 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P23: Gages 5565-5635 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5565 dif precip in 5580 dif precip in 5585 dif precip in 5595 dif precip in 5610 dif precip in 5625 dif precip in 5630 dif precip in 5635 dif precip in 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.08 0.00 0.08 0.00 0.16 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.12 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.04 0.12 0.12 0.43 0.08 0.31 0.04 0.31 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.08 0.16 0.00 0.35 0.00 0.08 0.00 0.28 0.04 0.24 0.00 0.16 0.08 0.75 0.39 0.28 0.63 1.42 1.10 0.59 0.87 1.57 1.18 0.83 0.87 0.75 0.35 0.35 0.67 0.71 0.67 0.51 0.59 1.22 1.18 0.59 0.87 1.10 0.91 0.43 0.79 2.20 1.38 1.30 0.83 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.83 0.24 0.00 0.04 0.79 0.20 0.00 0.04 0.75 0.20 0.00 0.12 0.87 0.31 0.00 0.04 0.87 0.08 0.04 0.00 0.75 0.20 0.00 0.08 0.75 0.16 0.00 0.04 0.98 0.31 0.00 0.20 0.00 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 3.31 5.98 6.57 3.58 3.66 5.67 4.69 7.83 1.77 2.68 3.94 4.69 5.79 2.01 3.07 4.45 5.12 6.26 0.98 1.22 2.01 2.56 3.54 0.91 1.46 2.56 2.64 3.62 1.73 2.56 3.82 4.33 5.39 1.46 2.13 3.23 3.62 4.57 2.52 3.86 5.67 6.14 7.68 Peak Intensities: 6-hour: 1.02 12-hour: 1.18 1-day: 2.09 2-day: 2.44 4-day: 3.31 56 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P24: Gages 5640-5730 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5640 dif precip in 5650 dif precip in 5660 dif precip in 5670 dif precip in 5685 dif precip in 5700 dif precip in 5715 dif precip in 5730 dif precip in 0.00 0.20 0.04 0.00 0.00 0.00 0.00 0.16 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.12 0.28 0.39 0.43 0.04 0.00 0.20 0.00 0.28 0.00 0.04 0.00 0.04 0.04 0.00 0.24 0.08 0.08 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.08 0.24 0.47 2.28 1.77 2.20 0.98 1.14 1.10 0.75 1.02 0.75 0.91 0.98 0.98 1.14 1.22 1.50 0.79 1.26 1.89 1.46 0.91 1.02 2.20 1.73 0.08 0.83 1.69 0.63 0.00 1.61 3.15 1.77 0.75 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.04 0.12 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 1.46 0.20 0.00 0.31 1.02 0.24 0.00 0.04 1.18 0.24 0.00 0.08 1.26 0.08 0.08 0.08 1.02 0.35 0.00 0.12 0.63 0.04 0.12 0.00 0.31 0.00 0.00 0.00 1.06 0.16 0.00 0.20 0.00 0.04 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.08 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.08 0.00 10.75 5.79 5.55 6.65 7.40 6.02 3.54 9.76 1.65 2.48 3.98 4.45 5.59 1.38 2.20 3.62 4.09 5.39 1.81 3.11 4.72 5.47 6.54 2.20 3.82 5.47 5.83 7.24 Peak Intensities: 6-hour: 2.40 12-hour: 4.45 1-day: 7.32 2-day: 8.43 4-day: 10.43 3.43 5.71 7.48 8.15 9.57 5700 - some, but not all precipitation fell as snow and melted after 01/23. 5715 - this storm total appears to be low, but the gage was visited and no problem was found. 57 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 58 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P25: Gages 5745-5900 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5745 dif precip in 5760 dif precip in 5775 dif precip in 5790 dif precip in 5805 dif precip in 5820 dif precip in 5890 dif precip in 5900 dif precip in 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.08 0.08 0.00 0.00 0.20 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.16 0.12 0.00 0.08 0.43 0.00 0.00 0.24 0.20 0.12 0.16 0.12 0.00 0.04 0.04 0.20 0.20 0.00 0.04 0.20 0.20 0.00 0.20 0.08 0.00 0.20 0.04 0.12 0.47 0.12 0.00 0.24 0.16 0.98 0.91 1.02 0.83 1.38 0.63 0.87 0.59 1.06 1.14 0.87 0.51 0.91 0.59 0.67 0.51 0.94 1.02 0.63 0.47 0.51 0.79 0.59 0.00 1.81 1.61 0.98 0.71 1.42 0.71 0.59 0.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.20 0.00 0.00 0.00 0.00 0.91 0.08 0.04 0.24 0.83 0.00 0.00 0.31 0.87 0.16 0.00 0.20 0.59 0.00 0.00 0.35 0.79 0.08 0.00 0.28 0.43 0.08 0.00 0.16 1.26 0.08 0.00 0.20 1.06 0.04 0.00 0.04 0.00 0.04 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.08 0.00 0.00 0.04 0.08 0.04 0.00 0.00 0.04 0.08 0.00 0.04 0.00 0.04 0.00 0.00 0.04 0.04 0.00 5.75 5.08 5.43 4.53 5.00 3.07 7.91 5.04 1.22 1.97 3.43 3.90 5.08 1.38 2.44 3.50 3.90 5.28 0.98 1.85 2.56 3.11 4.29 1.26 2.20 3.11 3.50 4.65 1.06 1.69 1.85 2.17 2.87 1.93 3.50 5.35 5.91 7.68 1.38 2.09 3.11 3.62 4.76 Peak Intensities: 6-hour: 1.22 12-hour: 2.13 1-day: 3.90 2-day: 4.37 4-day: 5.63 59 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P26: Gages 5910-5950 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5910 dif precip in 5915 dif precip in 5920 dif precip in 5925 dif precip in 5930 dif precip in 5940 dif precip in 5945 dif precip in 5950 dif precip in 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.16 0.00 0.00 0.00 0.08 0.00 0.16 0.04 0.00 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.16 0.31 0.16 0.12 0.16 0.00 0.35 0.08 0.16 0.00 0.20 0.08 0.04 0.12 0.12 0.51 0.12 0.04 0.08 0.08 0.16 0.00 0.20 0.24 0.08 0.00 0.20 0.04 0.20 0.00 0.04 0.04 1.10 0.87 0.51 0.43 1.30 0.63 0.83 0.55 1.26 0.47 0.43 0.55 2.83 2.40 1.61 0.63 0.87 0.87 0.43 0.31 1.30 0.83 0.79 0.79 0.08 0.08 0.35 0.28 1.02 0.16 0.16 0.43 0.00 0.00 0.00 0.35 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.55 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 1.38 0.00 0.00 0.08 1.10 0.08 0.00 0.08 0.98 0.04 0.00 0.08 1.65 0.00 0.00 0.28 1.14 0.00 0.00 0.08 1.26 0.12 0.00 0.20 0.63 0.04 0.04 0.00 0.87 0.04 0.00 0.08 0.04 0.04 0.08 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.08 0.00 0.16 0.16 0.12 0.00 0.00 0.08 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.08 0.00 5.71 5.39 4.45 11.38 4.29 6.10 2.01 3.23 1.26 1.93 3.27 3.86 5.16 1.30 1.73 2.76 3.11 4.25 3.31 5.31 7.60 8.27 10.98 1.10 1.73 2.52 2.80 4.13 1.34 2.13 3.78 4.29 5.87 Peak Intensities: 6-hour: 1.34 12-hour: 1.97 1-day: 2.91 2-day: 3.62 4-day: 5.43 0.98 1.14 1.69 2.01 3.03 5945 - this storm total appears to be low (likely due to high wind exposure), but the gage was visited and no problem was found. 60 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P27: Gages 5955-5990 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5955 dif precip in 5960 dif precip in 5965 dif precip in 5970 dif precip in 5975 dif precip in 5980 dif precip in 5985 dif precip in 5990 dif precip in 0.00 0.08 0.12 0.12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.28 0.04 0.31 0.43 0.00 0.00 0.00 0.00 0.16 0.00 0.08 0.04 0.20 0.00 0.12 0.00 0.12 0.00 0.20 0.00 0.20 0.00 0.08 0.04 0.28 0.00 0.16 0.04 0.16 0.00 0.24 0.04 2.40 1.54 1.65 0.94 1.10 1.34 1.14 0.00 0.94 0.31 0.24 0.43 0.91 0.31 0.28 0.51 0.75 0.20 0.31 0.39 0.98 0.31 0.35 0.51 0.87 0.28 0.39 0.43 0.87 0.35 0.35 0.39 0.00 0.00 0.00 0.16 0.00 0.16 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.85 0.20 0.04 0.24 0.59 0.16 0.08 0.00 0.98 0.04 0.00 0.04 1.02 0.04 0.00 0.08 0.79 0.04 0.00 0.04 0.98 0.08 0.00 0.08 0.98 0.00 0.04 0.04 0.91 0.00 0.00 0.04 0.04 0.04 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 10.51 4.65 3.46 3.62 3.03 3.86 3.58 3.46 0.98 1.14 1.89 2.17 3.23 1.02 1.14 1.97 2.28 3.46 0.79 0.94 1.61 1.97 2.80 0.98 1.26 2.13 2.44 3.62 0.83 1.14 1.93 2.40 3.50 0.87 1.18 1.93 2.36 3.35 Peak Intensities: 6-hour: 2.52 12-hour: 4.06 1-day: 6.77 2-day: 7.56 4-day: 10.04 5960 - some, but not all precipitation fell as snow and melted after 01/23. 61 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P28: Gages 5995-6540 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 5995 dif precip in 6500 dif precip in 6510 dif precip in 6520 dif precip in 6525 dif precip in 6530 dif precip in 6535 dif precip in 6540 dif precip in 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.20 0.00 0.31 0.08 0.04 0.00 0.08 0.00 0.12 0.08 0.12 0.00 0.08 0.04 0.08 0.00 0.11 0.07 0.06 0.00 0.04 0.12 0.04 0.00 0.04 0.04 0.04 0.04 0.08 0.04 0.12 0.04 0.94 0.28 0.59 0.47 0.59 0.20 0.12 0.39 0.47 0.24 0.08 0.39 0.51 0.12 0.12 0.47 0.73 0.24 0.13 0.34 0.63 0.04 0.12 0.67 0.51 0.08 0.12 0.39 0.63 0.08 0.20 0.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.10 0.00 0.00 0.08 0.75 0.12 0.04 0.00 0.75 0.20 0.00 0.04 0.79 0.08 0.00 0.00 0.70 0.15 0.00 0.02 1.10 0.04 0.00 0.00 1.02 0.04 0.00 0.00 0.91 0.04 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 4.25 2.40 2.48 2.32 2.58 2.95 2.40 2.68 0.79 0.91 1.26 1.54 2.36 0.75 0.87 1.14 1.50 2.48 0.83 0.87 1.18 1.54 2.28 0.76 0.96 1.44 1.68 2.54 1.10 1.18 1.42 2.01 2.83 1.02 1.06 1.10 1.65 2.32 0.91 0.94 1.42 1.73 2.64 Peak Intensities: 6-hour: 0.94 12-hour: 1.26 1-day: 2.24 2-day: 2.83 4-day: 4.06 62 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P29: Gages 6550-6595 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6550 dif precip in 6560 dif precip in 6570 dif precip in 6575 dif precip in 6580 dif precip in 6585 dif precip in 6590 dif precip in 6595 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.12 0.04 0.12 0.12 0.04 0.04 0.00 0.04 0.16 0.08 0.04 0.00 0.04 0.08 0.00 0.12 0.00 0.00 0.12 0.08 0.04 0.04 0.04 0.00 0.08 0.04 0.12 0.04 0.00 0.00 0.00 0.39 0.63 0.12 0.12 0.35 0.87 0.20 0.55 0.08 0.67 0.20 0.16 0.75 0.83 0.12 0.12 0.47 0.59 0.00 0.08 0.43 0.47 0.04 0.08 0.43 0.67 0.16 0.16 0.67 0.24 0.04 0.12 0.31 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.71 0.12 0.00 0.00 0.79 0.08 0.00 0.00 0.98 0.04 0.00 0.04 1.10 0.00 0.00 0.00 1.14 0.00 0.00 0.00 0.91 0.00 0.00 0.00 1.06 0.00 0.00 0.04 0.91 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.52 2.76 3.19 2.91 2.48 2.09 3.03 2.17 0.79 1.02 1.65 1.81 2.76 0.98 1.06 1.73 2.13 3.15 1.06 1.14 1.61 1.81 2.91 1.10 1.10 1.14 1.61 2.44 0.91 0.91 0.98 1.50 2.09 1.06 1.06 1.65 2.05 3.03 0.87 0.87 0.91 1.34 2.01 Peak Intensities: 6-hour: 0.75 12-hour: 0.83 1-day: 1.26 2-day: 1.61 4-day: 2.48 63 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P30: Gages 6600-6635 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6600 dif precip in 6605 dif precip in 6610 dif precip in 6615 dif precip in 6620 dif precip in 6625 dif precip in 6630 dif precip in 6635 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.04 0.04 0.16 0.00 0.00 0.04 0.00 0.00 0.04 0.00 0.16 0.08 0.04 0.00 0.16 0.08 0.16 0.04 0.00 0.00 0.12 0.12 0.16 0.08 0.12 0.00 0.16 0.08 0.12 0.00 0.12 0.08 0.47 0.16 0.12 0.67 0.28 0.00 0.16 0.39 0.91 0.04 0.16 0.47 0.91 0.08 0.08 0.59 0.67 0.00 0.12 0.51 0.67 0.28 0.16 0.59 0.87 0.28 0.16 0.91 0.79 0.20 0.12 0.71 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.94 0.00 0.00 0.00 0.51 0.04 0.00 0.00 1.18 0.00 0.00 0.00 1.14 0.00 0.00 0.00 1.18 0.00 0.00 0.00 1.02 0.00 0.00 0.00 0.98 0.00 0.00 0.04 0.98 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.64 1.46 3.03 3.11 2.72 3.23 3.66 3.19 1.18 1.18 1.57 1.85 3.03 1.06 1.14 1.57 1.93 3.07 1.10 1.18 1.30 1.81 2.68 0.98 1.02 1.65 2.13 3.19 0.94 1.22 2.20 2.56 3.54 0.94 0.98 1.77 2.13 3.15 Peak Intensities: 6-hour: 0.91 12-hour: 0.94 1-day: 1.42 2-day: 1.89 4-day: 2.60 6605 - this storm total appears to be low, but the gage was visited and no problem was found. 64 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P31: Gages 6640-6690 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6640 dif precip in 6650 dif precip in 6655 dif precip in 6670 dif precip in 6675 dif precip in 6680 dif precip in 6685 dif precip in 6690 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.20 0.00 0.12 0.12 0.28 0.00 0.24 0.04 0.08 0.00 0.31 0.08 0.16 0.08 0.20 0.12 0.12 0.00 0.08 0.12 0.04 0.16 0.00 0.04 0.04 0.00 0.28 0.08 0.12 0.00 0.16 0.04 0.63 0.24 0.20 0.63 0.75 0.31 0.12 0.83 0.51 0.43 0.16 0.63 0.67 0.28 0.28 0.59 0.67 0.20 0.20 0.43 0.71 0.12 0.20 0.43 0.55 0.28 0.04 0.55 0.71 0.20 0.20 0.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.87 0.00 0.00 0.04 0.91 0.00 0.00 0.04 0.87 0.04 0.00 0.04 1.10 0.00 0.00 0.00 1.06 0.00 0.00 0.04 0.79 0.00 0.00 0.00 0.98 0.00 0.00 0.04 0.98 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.07 3.58 3.19 3.54 2.99 2.60 2.87 2.99 0.87 1.14 2.01 2.56 3.50 0.87 1.10 1.69 2.20 3.15 1.02 1.10 1.81 2.36 3.46 1.02 1.10 1.54 1.89 2.95 0.71 0.83 1.30 1.65 2.56 0.91 0.98 1.42 1.77 2.83 0.98 1.02 1.57 1.93 2.95 Peak Intensities: 6-hour: 0.83 12-hour: 1.02 1-day: 1.73 2-day: 2.13 4-day: 3.03 65 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P32: Gages 6695-6730 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6695 dif precip in 6700 dif precip in 6705 dif precip in 6710 dif precip in 6715 dif precip in 6720 dif precip in 6725 dif precip in 6730 dif precip in 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.16 0.00 0.31 0.16 0.12 0.12 0.08 0.00 0.04 0.00 0.16 0.04 0.08 0.04 0.12 0.28 0.20 0.20 0.16 0.47 0.24 0.04 0.16 0.24 0.24 0.12 0.20 0.16 0.24 0.08 0.31 0.31 0.67 0.31 0.28 0.87 0.75 0.16 0.24 0.39 0.71 0.20 0.04 0.63 0.75 0.16 0.08 0.71 0.75 0.00 0.00 0.51 0.59 0.08 0.16 0.47 0.71 0.28 0.35 0.67 0.71 0.28 0.16 0.63 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.12 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.98 0.00 0.00 0.04 0.83 0.00 0.00 0.00 1.02 0.00 0.00 0.00 1.14 0.00 0.00 0.00 0.87 0.00 0.00 0.00 0.83 0.00 0.00 0.00 1.02 0.00 0.00 0.04 0.91 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.86 2.72 2.87 3.39 3.35 2.87 3.82 3.66 0.83 0.87 1.54 1.85 2.72 0.98 1.02 1.57 1.89 2.83 1.10 1.10 1.93 2.20 3.35 0.91 1.30 1.69 2.24 3.31 0.79 0.87 1.46 1.97 2.87 0.94 1.14 1.97 2.68 3.74 0.87 1.06 1.97 2.72 3.62 Peak Intensities: 6-hour: 0.91 12-hour: 1.30 1-day: 2.09 2-day: 2.72 4-day: 3.74 66 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P33: Gages 6735-6830 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6735 dif precip in 6740 dif precip in 6745 dif precip in 6750 dif precip in 6780 dif precip in 6810 dif precip in 6820 dif precip in 6830 dif precip in 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 0.00 0.28 0.16 0.00 0.00 0.00 1.22 0.12 0.00 0.24 0.16 0.04 0.08 0.04 0.12 0.20 0.00 0.20 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.87 0.35 0.51 0.79 0.83 0.47 0.28 0.51 0.55 0.16 0.28 0.63 0.59 0.16 0.20 0.55 1.34 0.71 0.31 0.71 0.75 0.67 0.24 0.59 0.59 0.31 0.16 0.55 0.55 0.20 0.08 0.24 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.06 0.04 0.00 0.04 0.83 0.00 0.00 0.00 1.06 0.00 0.00 0.00 0.51 0.00 0.04 0.00 1.06 0.00 0.00 0.04 0.75 0.24 0.00 0.00 0.83 0.24 0.00 0.00 0.79 0.12 0.00 0.04 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.53 4.45 3.23 2.80 4.80 3.23 2.68 2.05 1.18 1.77 2.72 3.31 4.45 1.02 1.06 1.69 2.13 3.19 0.59 0.94 1.57 1.85 2.76 1.06 1.85 3.07 3.54 4.72 0.98 1.34 2.20 2.48 3.23 0.98 1.06 1.61 1.97 2.68 0.79 0.91 1.10 1.38 2.05 Peak Intensities: 6-hour: 1.02 12-hour: 1.42 1-day: 2.48 2-day: 3.11 4-day: 4.37 67 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P34: Gages 6835-6900 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6835 dif precip in 6840 dif precip in 6845 dif precip in 6850 dif precip in 6865 dif precip in 6880 dif precip in 6890 dif precip in 6900 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.04 0.00 0.59 0.59 0.16 0.63 0.75 0.28 0.08 0.28 0.71 0.31 0.20 0.20 0.04 0.00 0.08 0.04 0.63 0.35 0.28 0.63 0.51 0.16 0.16 0.20 0.55 0.16 0.12 0.12 0.71 0.00 0.20 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.75 0.20 0.00 0.00 0.55 0.24 0.00 0.00 0.87 0.04 0.00 0.04 0.59 0.08 0.00 0.04 0.94 0.20 0.00 0.04 0.79 0.16 0.00 0.00 0.67 0.12 0.00 0.04 1.10 0.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.91 2.20 2.36 0.94 3.11 2.09 1.85 2.64 0.75 0.91 1.38 1.38 2.20 0.87 1.02 1.42 1.57 2.36 1.02 1.14 1.89 2.20 3.11 0.91 0.94 1.02 1.38 2.09 0.79 0.79 0.91 1.18 1.85 1.34 1.38 1.38 1.77 2.64 Peak Intensities: 6-hour: 0.87 12-hour: 1.18 1-day: 1.97 2-day: 2.24 4-day: 2.91 6850 - this storm total appears to be low, but the gage was visited and no problem was found. 68 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P35: Gages 6905-6960 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6905 dif precip in 6910 dif precip in 6920 dif precip in 6930 dif precip in 6940 dif precip in 6950 dif precip in 6955 dif precip in 6960 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.12 0.00 0.00 0.00 0.20 0.04 0.00 0.04 0.08 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.16 0.00 0.00 0.00 0.55 0.00 0.00 0.63 0.28 0.39 0.79 0.47 0.04 0.00 0.08 0.59 0.04 0.00 0.04 0.79 0.04 0.00 0.08 0.71 0.04 0.00 0.12 0.59 0.31 0.24 0.39 0.75 0.00 0.00 0.12 0.67 0.00 0.00 0.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.87 0.20 0.00 0.00 0.87 0.31 0.00 0.00 1.34 0.16 0.00 0.00 0.98 0.20 0.00 0.00 0.75 0.00 0.00 0.08 0.71 0.31 0.00 0.00 1.22 0.04 0.00 ____ 1.30 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ____ ____ ____ ____ 0.00 0.00 0.04 0.00 3.23 1.93 2.44 2.32 1.81 2.56 2.32 2.76 1.10 1.18 1.18 1.26 1.89 1.46 1.50 1.50 1.54 2.40 1.18 1.26 1.34 1.38 2.28 0.75 0.75 0.83 0.94 1.81 0.94 1.02 1.54 1.89 2.56 1.22 1.26 1.26 1.38 2.32 1.30 1.34 1.34 1.50 2.72 Peak Intensities: 6-hour: 0.98 12-hour: 1.30 1-day: 2.09 2-day: 2.48 4-day: 3.23 Gage 6955 was down from 01/12 08:45 (3) through 01/19 11:21 (3) due to transmitter failure; no rain fell. 69 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P36: Gages 6965-7030 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 6965 dif precip in 6980 dif precip in 7000 dif precip in 7005 dif precip in 7010 dif precip in 7020 dif precip in 7025 dif precip in 7030 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.08 0.04 0.04 0.00 0.08 0.04 0.12 0.20 0.12 0.12 0.16 0.24 0.00 0.08 0.00 0.00 0.04 0.00 0.04 0.00 0.31 0.24 0.00 0.04 0.12 0.00 0.00 0.08 0.08 0.04 0.00 0.87 0.00 0.08 0.12 1.02 0.20 0.00 0.20 0.35 1.14 0.83 0.67 0.31 0.94 0.55 0.71 0.31 0.91 0.67 0.71 0.35 0.98 0.79 0.51 0.43 0.98 0.67 0.75 0.43 0.71 0.67 0.71 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.94 0.04 0.00 0.00 0.55 0.00 0.00 0.00 0.55 0.16 0.00 0.16 0.47 0.20 0.00 0.12 0.63 0.24 0.00 0.20 0.43 0.04 0.00 0.16 0.51 0.28 0.00 0.16 0.31 0.24 0.00 0.08 0.00 0.00 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.04 0.04 0.00 0.04 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.08 0.00 0.04 0.00 0.12 0.00 2.28 2.32 4.57 3.74 3.86 3.94 4.09 3.50 1.06 1.22 1.38 1.65 2.24 1.22 2.09 3.07 3.50 4.41 0.83 1.54 2.48 2.80 3.62 0.87 1.57 2.60 2.99 3.82 0.98 1.77 2.64 3.23 3.86 1.10 1.85 2.83 2.99 3.94 0.75 1.54 2.52 2.72 3.35 Peak Intensities: 6-hour: 0.94 12-hour: 0.98 1-day: 1.02 2-day: 1.22 4-day: 2.24 70 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P37: Gages 7035-7100 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 7035 dif precip in 7040 dif precip in 7050 dif precip in 7060 dif precip in 7070 dif precip in 7080 dif precip in 7090 dif precip in 7100 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.04 0.00 0.12 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.28 1.18 0.79 0.83 0.47 1.34 0.79 0.71 0.24 1.26 0.71 0.83 0.35 1.22 0.91 0.79 0.51 1.54 1.14 0.87 0.55 1.30 1.06 0.67 0.55 1.22 0.94 0.79 0.67 1.14 0.79 0.75 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.71 0.31 0.00 0.16 0.75 0.28 0.00 0.16 0.83 0.31 0.00 0.12 0.94 0.39 0.00 0.20 0.87 0.35 0.00 0.16 0.83 0.24 0.00 0.12 0.87 0.35 0.00 0.12 0.75 0.20 0.00 0.16 0.00 0.04 0.08 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.12 0.00 0.00 0.00 0.12 0.00 0.00 0.04 0.12 0.00 0.04 0.00 0.12 0.00 0.00 0.04 0.12 0.00 0.00 0.00 0.12 0.00 4.61 4.65 4.49 5.08 5.59 5.00 5.08 4.61 1.34 2.32 3.31 3.74 4.57 1.18 1.97 3.03 3.66 4.45 1.30 2.17 3.31 4.06 5.04 1.61 2.72 4.06 4.45 5.59 1.42 2.40 3.62 3.98 5.00 1.34 2.32 3.54 3.94 5.04 1.46 2.28 3.31 3.82 4.57 Peak Intensities: 6-hour: 1.14 12-hour: 2.01 1-day: 3.07 2-day: 3.66 4-day: 4.53 71 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P38: Gages 7110-7145 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 7110 dif precip in 7120 dif precip in 7130 dif precip in 7135 dif precip in 7140 dif precip in 7145 dif precip in ____ ____ ____ ____ 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.04 0.04 0.00 0.04 0.12 0.24 0.04 0.00 0.08 0.31 0.12 0.00 0.59 1.46 0.75 0.79 0.43 1.06 0.94 0.67 0.43 1.22 0.94 0.79 0.31 0.75 0.75 0.79 0.63 0.67 0.67 0.43 0.43 1.06 0.67 0.55 0.00 0.00 0.00 0.94 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.75 0.24 0.00 0.16 0.75 0.35 0.00 0.16 0.87 0.24 0.00 0.16 0.59 0.20 0.00 0.16 0.31 0.16 0.00 0.08 0.31 0.16 0.00 0.12 0.00 0.00 0.08 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.12 0.00 0.00 0.00 0.08 0.00 0.04 0.00 0.04 0.00 0.00 0.00 0.04 0.00 5.79 4.57 4.84 3.74 3.43 3.86 1.10 1.93 3.07 3.54 4.57 1.26 2.20 3.35 3.82 4.80 0.83 1.57 2.60 2.91 3.66 1.02 1.69 2.36 2.76 3.39 1.22 2.01 2.72 3.23 3.74 Peak Intensities: 6-hour: 12-hour: 1-day: 2-day: 4-day: 7110 was down from 01/18 06:55 (35) through 01/25 10:59 (158) due to a plugged funnel; count is OK but distribution was estimated. 72 FCDMC – 2801 W. Durango St., Phoenix, AZ 85009 (602) 506-1501 FCD of Maricopa County ALERT System P39: Gages 7150-7170 DeviceID StatType DataType Units 01/23/10 2400 1800 1200 0600 01/22/10 2400 1800 1200 0600 01/21/10 2400 1800 1200 0600 01/20/10 2400 1800 1200 0600 01/19/10 2400 1800 1200 0600 01/18/10 2400 1800 1200 0600 TOTALS: 7150 dif precip in 7155 dif precip in 7160 dif precip in 7165 dif precip in 7170 dif precip in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.08 0.20 0.00 0.16 0.24 0.08 0.00 0.00 0.04 0.12 0.00 0.08 0.08 0.00 0.00 0.04 0.00 0.16 0.00 1.10 0.87 0.71 0.51 0.35 0.91 0.94 0.51 0.79 1.02 0.67 0.63 0.47 1.22 0.79 0.71 0.39 1.26 0.79 0.71 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.04 0.04 0.00 0.00 0.00 0.31 0.12 0.00 0.08 0.47 0.16 0.00 0.16 0.28 0.04 0.00 0.12 0.67 0.24 0.00 0.20 0.39 0.16 0.00 0.16 0.00 0.04 0.00 0.00 0.00 0.04 0.08 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.08 0.00 0.00 0.04 0.00 0.00 4.02 4.13 3.74 4.61 4.17 1.02 1.73 2.76 3.19 3.98 1.50 2.24 3.11 3.27 3.70 1.22 2.09 3.19 3.46 4.45 1.26 2.13 3.19 3.39 4.09 Peak Intensities: 6-hour: 1.73 12-hour: 2.52 1-day: 3.19 2-day: 3.46 4-day: 3.98 73