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<br />
<br />COLORADO BASIN
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<br />
<br />Basinwide Conditions Assessment
<br />The SWSI value of -1,8 indicates that for November
<br />the basin water supplies were below normal. The Natural
<br />Resources Conservation Service reports that December 1
<br />snowpack is 84% of normal. Flow at the gaging station
<br />Colorado River near Dotsero was 924 cfs, as compared to
<br />the long-term average of 1156 cfs, Storage in Green
<br />Mountain, Ruedi, and Williams Fork reservoirs totaled 77%
<br />of normai as of the end of November.
<br />
<br />Outlook
<br />Snowpack started the month of November at about. ~ .,
<br />average for the Colorado River basin but limited snowfall a
<br />"
<br />amounts throughout the month caused the snowpack to drop
<br />to 75% of average for the basin by early December. Grand
<br />Mesa had particuiarly low snowpack, with less than 50% of
<br />average snowpack,
<br />The senior Shoshone power call should remain on
<br />the Colorado River mainstem until scheduled turbine
<br />maintenance in January,
<br />
<br />Administrative/Manaaement Concerns
<br />Maintenance of. stream gaging stations at criticai
<br />minimum streamflow sites will' continue to be a priority
<br />throughout December and into January, Careful monitoring
<br />of these sites, which typically are at snowmaking diversion
<br />points, has not resuited in any curtailment to date this year,
<br />
<br />Public Use Impacts
<br />Streamflows should continue to meet or exceed
<br />minimum flow limits, allowing several major ski areas to keep
<br />up their snowmaking efforts, If typical December snowfall
<br />occurs, most ski areas should have sufficient snowpack for
<br />the upcoming, busy holiday season. However, at least one
<br />ski area without snowmaking remained closed in early
<br />December because of limited snowpack,
<br />
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<br />Dec-OO
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<br />ca.0FWX> BASIN SWSI H1S1"i:lRf
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<br />5".......-,........-..........
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<br />3,
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<br />~ 0
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<br />Jan-82 .kn-93 Jon.94
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<br />...,...... ......
<br />"""",\'EAR
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<br />600,000
<br />
<br />
<br />COLORADO RIVER NR. OQTSERO. flOW BY WATER YEAR
<br />
<br />ii 500,000
<br />~
<br />~ 400,000
<br />~
<br />it 300,000
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<br />~ 200,000
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<br />C,) 100,000
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<br />__WET (1984)
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<br />__DRY (1977)
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<br />__AVG
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<br />REPRESENT AllVE RESERvOIRS
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<br />7
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<br />120,000
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<br />100,000
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<br />~ 80000
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<br />~ 00,000
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<br />m 40,000
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<br />IIAvg.11I3OCaltents
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