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COLORADO BASIN <br /> .8 <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -0.4 indicates that for May the COLORADO RIVER BASIN <br /> asin water supplies were near normal. Storage in Green Sir,.0 Water Supply Index History <br /> 5 <br /> Mountain, Ruedi, and Williams Fork reservoirs totaled 122% 4_ <br /> of normal on May 31. The National Weather Service reports _ . i <br /> 9 <br /> basin precipitation as 43%of normal during May. Flow at the : •: <br /> gaging station Colorado River near Dotsero averaged 3,238 cfs 2 J , <br /> as compared to the 1961-1993 average of 4,509 cfs. 1 , <br /> A <br /> Outlook ,j � <br /> The month of May has been relatively dry, and the a 2 ., <br /> temperatures fairly consistent. Because of this the runoff has <br /> not varied drastically but has steadily increased throughout 3- <br /> the month. The river peaked on June 2 and should gradually -4 <br /> JAN85 JAN86 JAN87 JAN88 JAN89 JAN90 JAN91 JAN92 JAN93 JAN94 <br /> decrease during the rest of the summer. A below normal MONTH/YEAR <br /> runoff is still likely. <br /> Administrative/Management Concerns <br /> There were no major river calls during May and there <br /> will not be until sometime in July or August. This is the time COLORADO RIVER NR. DOTSERO <br /> of year when the smaller tributaries run higher and the junior 3.2 FLOW BY WATER YEAR <br /> water rights can turn on their ditches to irrigate. Quite often, 2 a <br /> this is the only time when they can get water and have to 2.6 <br /> make the most of it. This urgency for the once a year , 2 z <br /> irrigation period keeps the Water Commissioners very busy 2 <br /> and they have to hustle to keep the water users happy. <br /> o_ 1.6 <br /> W 3 14 <br /> 7 V <br /> "ublic Use Impacts s '2 <br /> Reservoirs are still filling and will be through the <br /> month of June. This provides additional recreational <br /> 0.4 <br /> opportunities for many people. Because the snowpack was 0.2 <br /> below normal, the runoff season will be short and the flow <br /> Oct Noy Dec Jan Feb Abrch April May Juno July Aug Sept <br /> fairly steady the rest of the summer. ►ONTN <br /> 0 WET(1984) O DRY(1977) p AVG X 1994 <br /> REPRESENTATIVE RESERVOIRS <br /> COLORAOO RIVER BASIN <br /> 90 <br /> 70 <br /> 80- <br /> 60 <br /> Vn <br /> rile <br /> 30 <br /> 20 <br /> Green Mountain FAydI Williams Fork <br /> v_zJ Avg 5/31 ContAntR ® 5/31/94 Conionie <br />