SWSIReportApril2006

• Title: Colorado Water Supply Conditions Report
• Date: 4/20/2006
• Description: Presentation
• Basin: Statewide
• Drought Mitigation - Doc Type: Presentation

COLORADO BASIN

Basinwide Conditions Assessment
The SWSI value of +1.6 indicates that for March the
basin water supplies were above normal. The Natural
Resources Conservation Service reports that April 1
snowpack is 110% of normal Flow at the gaging station
Colorado Rl'Ier near Dotsero was 1065 cfs. as compared to
the long-term average of 1079 cfs Storage in Green
Mountain. Ruedi, and Williams Fork reservoirs totaled 119%
of normal as of the end of March.
March precipitation was near average for the entire
Colorado River basin, but this yea(s regional variation was
reversed. the Eagle River and Blue River drainages received
less than average snowfall while the western part of the
basin, Includmg Grand Mesa, received above average
precipitation. The best snowpack remains in the upper,
eastern basins
The Colorado Basin River Forecast Center (NWS)
April 1 volume forecast shows above average volume runoff
(April - July) for alltnbutaries of the Colorado River except
Plateau Creek, which has a forecast of only 70 percent of
average, and Willow Creek (near Granby), which has a
forecast of 94 percent Highest forecasts are for Muddy
Creek above Wolford Mtn. Reservoir (130% of average),
Eagle River (134%). and Blue River (125%). The new
forecast at the Ootsero station, which measures flow
available to the Shoshone Power Plant, did not change from
the previous month: 122 percent of average

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