Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  December 12, 2007


PRECIPITATION WAS BELOW AVERAGE ACROSS THE ENTIRE MISSOURI
BASIN DURING THE MONTH OF NOVEMBER. STREAMFLOW DATA INDICATES THE
FLOWS FOR NOVEMBER REMAIN BELOW  AVERAGE.

PRECIPITATION IN MONTANA WAS BELOW AVERAGE WITH AMOUNTS RANGING
FROM 0 PERCENT OF AVERAGE (0.00 IN.) AT SEVERAL LOCATIONS TO
87 PERCENT OF AVERAGE (5.20 IN.) AT DARKHORSE LAKE, MONTANA.
PRECIPITATION IN WYOMING WAS BELOW AVERAGE. REPORTS RANGED FROM 0
PERCENT OF AVERAGE (0.00 IN.) AT SEVERAL LOCATIONS TO 85 PERCENT OF
AVERAGE (4.50 IN.) AT EVENING STAR, WYOMING. PRECIPITATION IN
NORTHEASTERN COLORADO WAS BELOW AVERAGE, WITH REPORTS RANGING FROM
0 PERCENT OF AVERAGE (0.00 IN.) AT JULESBURG, CO TO 37 PERCENT OF
AVERAGE (2.40 IN.) AT TOWER, COLORADO.


BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN:

BASIN AVERAGE PRECIPITATION
MILK ST. MARY                            60%
MILK CANADA                               36%
ABOVE TOSTON                          73%
TOSTON TO FT. PECK               77%
LOWER MILK                                33%
UPPER YELLOWSTONE             82%
WIND RIVER                                 31%
BIGHORN                                     41%
LITTLE BIGHORN TONGUE        45%
POWDER                                      23%
LOWER YELLOWSTONE            33%
UPPER NORTH PLATTE             35%
LOWER NORTH PLATTE            22%
NORTH PLATTE PLAINS             27%
SOUTH PLATTE MOUNTAINS    35%
SOUTH PLATTE PLAINS             26%


November 2007 Basin Mean Precipitation

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA, LIMA
RESERVOIR HAD 52 PERCENT AVERAGE STORAGE; CLARK CANYON WAS
HOLDING 56 PERCENT OF AVERAGE WATER, GIBSON RESERVOIR HAD
31 PERCENT OF AVERAGE STORED WATER AND FRESNO RESERVOIR HAD
71 PERCENT OF AVERAGE STORED WATER.  OF THE THREE MAJOR
HYDROELECTRIC RESERVOIRS IN MONTANA, CANYON FERRY AND FORT
PECK HAD MONTHEND STORAGE IN THE AVERAGE RANGE; 87 AND 55
PERCENT OF AVERAGE WATER, RESPECTIVELY.  BIGHORN RESERVOIR
WAS HOLDING 96 PERCENT OF AVERAGE STORED WATER.

RUNOFF DURING OCTOBER, AS INDICATED BY U.S. GEOLOGICAL SURVEY LONG
TERM GAGING STATIONS, WAS BELOW AVERAGE.  THE MARIAS RIVER NEAR
SHELBY, MONTANA HAD 56 PERCENT OF AVERAGE RUNOFF.  THE YELLOWSTONE
RIVER WAS ESTIMATED TO HAVE HAD 79 PERCENT OF AVERAGE RUNOFF AT
CORWIN SPRINGS, WHILE AT BILLINGS, MONTANA RUNOFF WAS 75 PERCENT OF
AVERAGE.

    

          Precipitation Maps

 
          November 2007       Oct-Nov WY 2008

                          

November 2007 Precipitation Percent of 1971-2000 Average  Oct-Nov  WY2008 Precipitation as Percent of 1971-2000 Average


November 2007 Basin Mean Precipitation                    Oct-Nov WY2008 Basin Mean Precipitation

                               

November 2007 MBRFC Basin Mean Precipitation              Oct-Nov WY2008 MBRFC Basin Mean Precipitation


 

 


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