Note that if drought conditions are not being experienced, or in the case of river flooding or heavy rain, this statement may be used to indicate river flows or flood potential.
000
FGUS75 KBOU 090420
ESFBOU
COC001-005-013-014-019-031-035-039-047-049-057-
059-069-073-075-087-093-095-115-117-121-123-010000-
WATER SUPPLY OUTLOOK
NATIONAL WEATHER SERVICE DENVER CO
919 PM MST FRI JAN 08 2010
NATIONAL WEATHER SERVICE/NATURAL RESOURCES CONSERVATION SERVICE
STREAMFLOW FORECASTS FOR NORTH CENTRAL AND NORTHEAST COLORADO AS OF
JANUARY 2010.
WEST OF THE DIVIDE...BY JANUARY 8TH THE UPPER COLORADO SNOWPACK WAS
ONLY 78 PERCENT OF AVERAGE. THIS IS THE LOWEST JANUARY 8TH SNOWPACK
SINCE 2002 WHEN IT WAS 72 PERCENT OF AVERAGE. SUB-BASIN SNOWPACK ON
JANUARY 1ST IN GRAND AND SUMMIT COUNTIES RANGED FROM 62 PERCENT OF
AVERAGE IN THE WILLOW CREEK DRAINAGE TO 79 PERCENT OF AVERAGE IN THE
WILLIAMS FORK BASIN. SNOWFALL TOTALS FROM SEPTEMBER THROUGH DECEMBER
2009 IN GRAND AND SUMMIT COUNTIES RANGED FROM 40 TO 85 PERCENT OF
NORMAL.
EAST OF THE DIVIDE...THE MOUNTAIN SNOWPACK HAS SLOWLY DECLINED. IN
THE SOUTH PLATTE BASIN THE NOVEMBER 8TH 2009 SNOWPACK WAS 115
PERCENT OF AVERAGE...95 PERCENT A MONTH LATER...FALLING TO 89
PERCENT OF AVERAGE BY JANUARY 8TH. IN THE NORTH PLATTE AND LARAMIE
RIVER BASINS THE SNOWPACK FELL FROM 95 PERCENT OF AVERAGE ON
NOVEMBER 8TH 2009 TO 81 PERCENT OF AVERAGE ON JANUARY 8TH. SNOWPACK
IN THE PLATTE SUB-BASINS ON JANUARY 1ST RANGED FROM 76 PERCENT OF
AVERAGE IN THE NORTH PLATTE RIVER DRAINAGE TO 132 PERCENT OF AVERAGE
IN THE ST VRAIN CREEK BASIN. SNOWFALL AMOUNTS FOR SEPTEMBER THROUGH
DECEMBER 2009 WERE GENERALLY 125 TO 200 PERCENT OF AVERAGE.
RESERVOIR STORAGE...COMBINED STORAGE WAS IN GOOD SHAPE AT 100 AND
104 PERCENT OF AVERAGE...RESPECTIVELY IN THE SOUTH PLATTE AND UPPER
COLORADO BASINS AT THE END OF DECEMBER.
TEMPERATURES...DECEMBER TEMPERATURES WERE GENERALLY 55 TO 85 PERCENT
OF NORMAL.
STREAMFLOW FORECASTS...WATER SUPPLY FORECASTS CALL FOR SLIGHTLY
BELOW AVERAGE RUNOFF IN THE SOUTH PLATTE BASIN AND BELOW AVERAGE
RUNOFF IN THE UPPER COLORADO AND NORTH PLATTE BASINS. IT SHOULD BE
NOTED THAT IT IS STILL EARLY IN THE SNOW ACCUMULATION SEASON AND
CONDITIONS MAY CHANGE BEFORE THE RUNOFF BEGINS.
FOLLOWING ARE STREAMFLOW FORECASTS FOR SELECTED LOCATIONS:
MOST PROBABLY FORECAST
VOLUME PERCENT
STREAM AND STATION PERIOD 1000 AF OF AVG
__________________ ______ _______ _______
SOUTH PLATTE RIVER
ANTERO RESERVOIR INFLOW APR-SEP 19.9 90
SPINNEY MTN RES INFLOW APR-SEP 64 93
11-MILE CANYON RES INFLOW APR-SEP 67 93
CHEESMAN LAKE INFLOW APR-SEP 135 96
SOUTH PLATTE APR-SEP 240 94
BEAR CREEK
EVERGREEN ABV APR-SEP 21 84
MORRISON APR-SEP 25 81
CLEAR CREEK
GOLDEN APR-SEP 122 91
ST VRAIN CREEK
LYONS APR-SEP 94 86
BOULDER CREEK
ORODELL APR-SEP 55 92
SOUTH BOULDER CREEK
ELDORADO SPRINGS APR-SEP 43 93
BIG THOMPSON RIVER
CANYON MOUTH APR-SEP 102 86
CACHE LA POUDRE
CANYON MOUTH APR-SEP 250 91
NORTH PLATTE RIVER
NORTHGATE APR-SEP 200 74
COLORADO RIVER
LAKE GRANBY APR-JUL 190 84
WILLOW CREEK
WILLOW CREEK RES APR-JUL 40 78
FRASER RIVER
WINTER PARK APR-JUL 17 85
WILLIAMS FORK RIVER
WILLIAMS FORK RES APR-JUL 80 84
BLUE RIVER
DILLON RES APR-JUL 140 84
GREEN MTN RES APR-JUL 235 84
MUDDY CREEK
WOLFORD MTN RES BLW APR-JUL 45 75
COLORADO RIVER
KREMMLING APR-JUL 710 82
$$
TH
