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GUNNISON BASIN ' <br /> Basinwide Conditions Assessment: I <br /> The SWSI value of +0.8 indicates that the basin SURFACE WATER SUPPLY INDEX <br /> water supply is slightly above normal. Snowpack measured S °x'^'aa^R'w'Been <br /> only 75% of normal on December 1, 1990. Precipitation for 4_ <br /> the month was 107%of normal. Basinwide reservoir storage l <br /> is 118% of normal, as measured on December 1, 1990. '^ i_. <br /> Water District 40 (Grand Mesa) reservoir storage is only 14% 2- - *, . : , <br /> of capacity as compared to the seasonal historic level of 40%. .. <br /> Reservoir capacity on Grand Mesa exceeds water availability ,, --: -:--t .=\IT- V• i <br /> P tY <br /> except in wet years. It will take an above average snowpack _ t t° i. 1. <br /> to restore reservoir storage to average levels. Overall, h aoil <br /> streamflow was slightly above normal for the month n ��- <br /> throughout the basin. Flow at the key gaging station, - . ` <br /> -3 <br /> Uncompaghre River near Ridgway, averaged 76 cfs for the .,..._......................._._....__...__.-_................--.................- .........-.........., <br /> month as compared to the historic monthly flow of 71 cfs. r " y �Aww � <br /> Outlook: <br /> Early snowfall has improved conditions in the basin, <br /> but water supplies will remain short throughout most of the <br /> basin. Much of the snowmelt in the basin can be expected UNCOMPAHGRE RIVER NR, R I DGWAY <br /> to percolate into the ground to restore soil moisture and S <br /> ground water. The past three years of drought have` 4.5_ <br /> seriously depleted ground water in storage as observed by ,:7, <br /> diminished flow of springs. <br /> W 3.5 <br /> Administrative/Management Concerns: " <br /> Reservoirs are utilizing storage rights with the s ''s <br /> exception of junior rights which are mainly municipal water 8 2 <br /> decrees. ''' <br /> i <br /> Public Use Impacts: U.S <br /> Water-based recreation has been sustained at Blue 0 A <br /> 990 <br /> Mesa Reservoir and in the Gunnison River below the II-p214402 AV NOV 1 <br /> reservoir. Telluride ski area received good early snowpack. <br /> Gunnison River Basin Reservoir Supplies Gunnison River Basin Reservoir Supplies <br /> leo so <br /> 77/coo- 7O- <br /> so= sou i fj <br /> 1 so <br /> z� goo ..? <br /> .11 4°../\ <br /> l i Sao <br /> • <br /> i mc, 1 .7/\ <br /> AA . XiM V /..N.1 --,„ <br /> 0. <br /> iu!MA 11/30 Ave BLUE MINA 11/3W00 Tay la:Paris 0raafara Fruitland <br /> J AVq. II/70 0dasnts ® 11/30/00 Contan is <br /> 6 <br />