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COLORADO BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -2.2 indicates that for June the COLORADO RIVER BASIN <br /> basin water supplies were below normal. The National s '"'""later Supply Index"""'y <br /> Weather Service reports June precipitation at 76%of average. 4- <br /> Basinwide reservoir storage was 106% of average on July 1. - <br /> Flow at the gaging station, Colorado River near Dotsero, 3- <br /> averaged 2319 cfs as compared to the 1961-1991 June '- ,`. =-�=� <br /> average of 5704 cfs. - <br /> ::: IF= • r <br /> Outlook U I' V Uit, <br /> The extremely unusual spring runoff created lower _ > , 4 <br /> .3 ,L <br /> flows in June than normal. Asa result,the river is low going . <br /> into July. If the trend continues the river flows this summer _3- <br /> will stay well below normal. This will also apply to the -4 , ----- -� . ...... <br /> JM113 JANOS JANOS JANOS JAN97 JANS9 JANIS JAN90 JANS1 JAN32 <br /> smaller side tributaries. „D,.Th,,„ <br /> Administrative/Management Concerns <br /> Because of the low river flows, the Shoshone <br /> Hydroelectric Power Plant call of 1-7-1902 will likely be <br /> placed around the middle of July. The Grand Valley call will COLORADO RIVER NR. DOTSERO <br /> probably come on in late July or early August and control the 3.2 FLOWSY <br /> PATES"E"" <br /> entire Colorado river system. Green Mountain Reservoir 2.8 <br /> should come fairly dose to filling and can release water for 2.8 . A <br /> replacement of out of priority depletions. .:, 2.4 <br /> 56 2 E1•0Public Use Impactse 6 _ <br /> Levels at most storage reservoirs will be lower than 1 1.•usual. Recreation uses along the Colorado and Roaring Fork '2 'rivers should not experience substantial adverse affects. For d o.• <br /> 0.S <br /> irrigation users on the smaller side tributaries this will likely 0 <br /> .4 <br /> be a dry summer and fall. 0.2 . <br /> 0 , <br /> Oct 44Pr Dee Jan Feb "Wren IprII Iry .Juno July Aug Sept <br /> AdIT14 <br /> 0 +TT(1954) + Doh'C1977) O AVG A 1332 <br /> REPRESENTATIVE RESERVOIRS <br /> 130 COLORADO RIVB1 SAWN <br /> 120-r7, <br /> 110 /! <br /> 100 / <br /> r „ <br /> 4 3 go <br /> .",„ <br /> 11 . <br /> tl., so <br /> ://\, <br /> • <br /> 9 40 „/"\\ /\\ <br /> a <br /> 30 <br /> 20..\,-„,//7//\,, <br /> 10 <br /> Gown MOunteln Rued1 Et Ileoo Fork <br /> ® Avg.i/30 Contents ® W 30192 ODntont <br /> 7 <br />