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<br />I <br /> <br />I <br /> <br /> TableJ <br /> A \.'erage ~lonthly Precipitalion <br /> Dolores Ri\'f~'r Basin, Colorado <br /> Conez Dolores Mancos Rico Silvenon Telluride <br /> 6153 ft 6940 ft 7030 ft 8827 ft 9278f1 8792 ft <br />Month ;" % ;0 % m % m % ;0 % m % <br />"0 1.08 8% 1.77 10'% 1.38 8% 2.47 9% 1.66 7% 1.64 7% <br />F,b 0.88 7% IA8 8% 1.19 7% 2.15 8% 1.54 6% 1.57 7% <br />Mar 1.10 9"10 1.87 ]00/6 1.6] 10% 2.44 9"/. 2.10 9% 2,02 9% <br />Ap' 0.93 7% 1.52 8% 1.2] 7% 1.77 7% 1.69 7% 2,04 9% <br />May 0.96 7% 1.29 7% 1.20 7% 1.62 6% 1.50 6% 1.84 8% <br />Jon 0.46 4% 0.57 3% 0.49 3% 1.34 5% 1.40 6% 1.26 5% <br />Jul 1.15 9% 1.43 8% 1.77 1]% 2.77 11% 2.75 11% 2.50 11% <br />Aug 1.51 12% 1.93 10% 1.89 11% 2.84 11% 3.10 13% 2,75 12% <br />S'p 1.19 9"/. 1.53 8% 1.45 9% 2.33 9% 2.72 11% 2.12 9% <br />0<1 1--'5 11% 1.87 10% 1.63 10% 2.13 8% 2.35 ]0% 2.04 9% <br />Nov 1.04 8% 1.71 9% I.JI 8% 1.97 8% ].45 6% 1.68 7% <br />Dcc 1.04 8% 1.53 8% 1.29 8% 2.20 8% 1.75 7% 1.63 7% <br />Total 12.8 100% 18.5 100% 16.4 100% 26.0 ]00% 24.0 100% 23.1 100% <br /> <br />I <br /> <br />Source: National Oceanic and Atmospheric Administrdtion (NOAA), National Weather Service (NWS), <br />provided by the National Climatic Data Center (NCDC). <br /> <br />5.6 Stann and Flood Characteristics. The majority of the major flooding on the Dolores <br /> <br />River above McPhee Reservoir, Colorado, results from rapid melting of the basin snowpack <br /> <br />during the period of April to July. Moderate peaks, large volumes, and long duration of flows <br /> <br />characterize these flood hydrographs. Rainfall on the snowpack followed by a rapid warming <br /> <br />trend has produced the largest snowmelt hydrograph peak flows. See Table 4 on the following <br /> <br />page for information about streamflow gages on the Dolores River and Lost Canyon Creek used <br /> <br />for this hydrology report and the observed rain flood and snowmelt peak flows (Reference 4.i). <br /> <br />11 <br />