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i <br /> COLORADO BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of-1.8 indicates that for January the COLORADO RIVER BASIN <br /> basin water supplies were below normal. The National 5 W*"' "' lv 580 History <br /> Weather Service reports precipitation for January at 47% of ,_ <br /> average. The Soil Conservation Service reports February 1 W 3- = . <br /> snowpack at 81% of average. Flow at the gaging station, <br /> Colorado River near Dotsero,averaged 721 cfs as compared to 2- =-E <br /> the 1961-1991 January average of 966 cfs. Basinwide - <br /> '.E: 13..... - it .. <br /> reservoir storage was 94% of average on February 1. i °J r ' , ,, ri..,_ 3'. \- <br /> 1( <br /> Outlook: - ill • <br /> The river flows on the Colorado and Roaring Fork o r I '` <br /> rivers have now fallen to below normal and, unless some 3- , <br /> precipitation occurs, will continue to lag the normal flow -4 - i ... .. ........ , , <br /> .,AN83 JANB4 JAN95 JAN96 JAN87 JAN89 .JANB9 JAN90 JAP191 JAN32 <br /> amounts. The major portion of the snow season still lies MONTN,YEAR <br /> ahead and at this point basin administrators feel trends for the <br /> next spring runoff and irrigation season are not yet firmly <br /> determined. <br /> Administrative/Management Concerns: COLORADO RIVER NR. DOTSERO <br /> The water rights on the Colorado River above SOO . I FLOW WATER YEAR <br /> Glenwood Canyon continue to be regulated by the 1250 cfs 450 I f <br /> Dotsero call of 1/7/1902. This call is used to satisfy the ,°° <br /> Shoshone Hydroelectric Power Plant and curtails any out of j <br /> priority transmountain diversions and winter reservoir storage. 350 <br /> P tY g , <br /> The average January flow through the power plant was only o 1 300 • <br /> 75% of normal. J <br /> W g 250 <br /> S 200 <br /> Public Use Impacts: i <br /> 150 <br /> The major public use in this area at this time of year <br /> is skiing and other snow dependent activities. A severe lack '°° <br /> of snow in December and January has had a drastic effect on 30 <br /> Oct Nov Dec Jan Feb Mercn <br /> this use. It also has a long term effect during the irrigation MONTH <br /> ser rEAR(19M) + ORY YEAR(1977O O AVG G 1741 <br /> season for users who depend on runoff water for their <br /> livelihood. Below normal snowfall affects almost everyone. <br /> REPRESENTATIVE RESERVOIRS <br /> COLORADO RIVER BASIN <br /> 9O <br /> :/ \ <br /> 76 / J \• <br /> J <br /> EO <br /> '.I 30 <br /> gt <br /> !I 40 7.\\ //\ <br /> 3 <br /> 20-://///"\\:\-\\: <br /> 10 <br /> CI-Mn Mount*in Rude WI I I Isnls Fork <br /> ® Avg. 1/31 Contents ® 1/31/s2 Contents <br /> 7 <br />