Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  November 16, 2012


UPPER MISSOURI BASIN
OCTOBER PRECIPITATION WAS ABOVE AVERAGE ACROSS THE UPPER 
MISSOURI BASIN. BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI
BASIN INCLUDE: MILK ST. MARY, 172 PERCENT; MILK CANADA, 321 PERCENT;
LOWER MILK, 342 PERCENT; ABOVE TOSTON, 109 PERCENT; TOSTON TO
FT. PECK, 311 PERCENT.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA: LIMA RESERVOIR
HAD 96 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 69 PERCENT
OF AVERAGE WATER, GIBSON RESERVOIR HAD 22 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 91 PERCENT OF AVERAGE STORED WATER.
THE MAJOR HYDROELECTRIC RESERVOIRS IN MONTANA (CANYON FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE AVERAGE TO BELOW AVERAGE
RANGE; 90 AND 91 PERCENT OF AVERAGE WATER, RESPECTIVELY.
YELLOWSTONE BASIN

PRECIPITATION DURING THE MONTH OF OCTOBER WAS ABOUT 171 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 134 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 144 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, 160 PERCENT OF AVERAGE IN THE LITTLE BIGHORN-
-UPPER TONGUE BASINS, 200 PERCENT OF AVERAGE IN THE POWDER RIVER
BASIN, AND 320 PERCENT OF AVERAGE IN THE LOWER YELLOWSTONE BASIN.

MONTHEND STORAGE WAS 90 PERCENT OF AVERAGE AT BIGHORN RESERVOIR ON
THE WYOMING/MONTANA BORDER.

 

 

PLATTE BASIN



PRECIPITATION DURING OCTOBER IN THE PLATTE BASIN WAS ABOVE AVERAGE.
PRECIPITATION IN THE NORTH PLATTE BASIN ABOVE SEMINOE
RESERVOIR WAS 102 PERCENT OF AVERAGE. IN THE NORTH PLATTE BASIN
BETWEEN SEMINOE RESERVOIR AND GUERNSY RESERVOIR PRECIPITATION WAS 138
PERCENT OF AVERAGE. THE NORTH PLATTE BASIN BELOW GUERNSY RESERVOIR
HAD 260 PERCENT OF AVERAGE PRECIPITATION. THE HIGH ELEVATIONS OF THE
SOUTH PLATTE BASIN HAD 133 PERCENT OF AVERAGE OCTOBER PRECIPITATION
WHEREAS THE PLAINS HAD 217 PERCENT OF AVERAGE PRECIPITATION.

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








 

 

          Precipitation Maps

 

 
          October 2012                      WY 2013

                          

October 2012 Precipitation Percent of 1971-2000 Average       WY2013 Precipitation as Percent of 1971-2000 Average

 


October 2012 Basin Mean Precipitation                                        WY2013 Basin Mean Precipitation

                               

October 2012 MBRFC Basin Mean Precipitation                            WY2013 MBRFC Basin Mean Precipitation

 

 

 

 

 

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