Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  December 14, 2012


UPPER MISSOURI BASIN
NOVEMBER PRECIPITATION WAS ABOVE AVERAGE ACROSS THE UPPER 
MISSOURI BASIN. BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI
BASIN INCLUDE: MILK ST. MARY, 172 PERCENT; MILK CANADA, 185 PERCENT;
LOWER MILK, 297 PERCENT; ABOVE TOSTON, 154 PERCENT; TOSTON TO
FT. PECK, 214 PERCENT.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA: LIMA RESERVOIR
HAD 103 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 74 PERCENT
OF AVERAGE WATER, GIBSON RESERVOIR HAD 30 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 93 PERCENT OF AVERAGE STORED WATER.
THE MAJOR HYDROELECTRIC RESERVOIRS IN MONTANA (CANYON FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE AVERAGE RANGE; 91 AND 90
PERCENT OF AVERAGE WATER, RESPECTIVELY.
YELLOWSTONE BASIN

PRECIPITATION DURING THE MONTH OF NOVEMBER WAS ABOUT 112 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 98 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 118 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, 153 PERCENT OF AVERAGE IN THE LITTLE BIGHORN-
-UPPER TONGUE BASINS, 143 PERCENT OF AVERAGE IN THE POWDER RIVER
BASIN, AND 149 PERCENT OF AVERAGE IN THE LOWER YELLOWSTONE BASIN.

MONTHEND STORAGE WAS 96 PERCENT OF AVERAGE AT BIGHORN RESERVOIR ON
THE WYOMING/MONTANA BORDER.

 

 

PLATTE BASIN



PRECIPITATION DURING NOVEMBER IN THE PLATTE BASIN WAS BELOW AVERAGE.
PRECIPITATION IN THE NORTH PLATTE BASIN ABOVE SEMINOE
RESERVOIR WAS 46 PERCENT OF AVERAGE. IN THE NORTH PLATTE BASIN
BETWEEN SEMINOE RESERVOIR AND GUERNSY RESERVOIR PRECIPITATION WAS 48
PERCENT OF AVERAGE. THE NORTH PLATTE BASIN BELOW GUERNSY RESERVOIR
HAD 80 PERCENT OF AVERAGE PRECIPITATION. THE HIGH ELEVATIONS OF THE
SOUTH PLATTE BASIN HAD 25 PERCENT OF AVERAGE NOVEMBER PRECIPITATION
WHEREAS THE PLAINS HAD 55 PERCENT OF AVERAGE PRECIPITATION.

STORED WATER IN THE SOUTH PLATTE BASIN WAS 73 PERCENT OF AVERAGE.








 

 

          Precipitation Maps

 

 

 

 

 
    November 2012                 Oct-Nov WY 2013

                          

November 2012 Precipitation Percent of 1971-2000 Average       Oct-Nov WY2013 Precipitation as Percent of 1971-2000 Average

 


 
November 2012 Basin Mean Precipitation                                       Oct-Nov WY2013 Basin Mean Precipitation

                               

November 2012 MBRFC Basin Mean Precipitation                            Oct-Nov WY2013 MBRFC Basin Mean Precipitation

 

 

 

 

 

 

 

 

 


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