Water Supply Conditions in the Missouri River Basin for November 2014

Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  December 18, 2014

UPPER MISSOURI BASIN

NOVEMBER PRECIPITATION WAS ABOVE AVERAGE ACROSS THE UPPER MISSOURI
BASIN.  BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN INCLUDE:
MILK ST. MARY, 295 PERCENT; MILK CANADA, 271 PERCENT; LOWER MILK, 122
PERCENT; ABOVE TOSTON, 127 PERCENT; TOSTON TO FT. PECK, 173 PERCENT.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA:  LIMA RESERVOIR
HAD 108 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 71 PERCENT OF
AVERAGE WATER, GIBSON RESERVOIR HAD 49 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 150 PERCENT OF AVERAGE STORED WATER.
THE  MAJOR  HYDROELECTRIC  RESERVOIRS  IN  MONTANA (CANYON  FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE ABOVE AVERAGE RANGE; 99 AND
96 PERCENT OF AVERAGE WATER, RESPECTIVELY.

YELLOWSTONE BASIN

PRECIPITATION DURING THE MONTH OF NOVEMBER WAS ABOUT 104 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 182 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 206 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, AND 180 PERCENT OF AVERAGE IN THE LITTLE
BIGHORN BASINS-UPPER TONGUE BASINS, 133 PERCENT OF AVERAGE IN THE
POWDER RIVER BASIN, AND 133 PERCENT OF AVERAGE IN THE LOWER
YELLOWSTONE BASIN.

MONTHEND STORAGE WAS 103 PERCENT OF AVERAGE AT BIGHORN RESERVOIR ON
THE WYOMING/MONTANA BORDER.  

PLATTE BASIN

PRECIPITATION DURING NOVEMBER IN THE PLATTE BASIN WAS NEAR
AVERAGE. PRECIPITATION IN THE NORTH PLATTE BASIN
ABOVE SEMINOE RESERVOIR WAS 104 PERCENT OF AVERAGE. IN THE
NORTH PLATTE BASIN BETWEEN SEMINOE RESERVOIR AND GUERNSY
RESERVOIR PRECIPITATION WAS 85 PERCENT OF AVERAGE. THE NORTH
PLATTE BASIN BELOW GUERNSY RESERVOIR HAD 150 PERCENT OF AVERAGE
PRECIPITATION. THE HIGH ELEVATIONS OF THE SOUTH PLATTE BASIN HAD
97 PERCENT OF AVERAGE NOVEMBER PRECIPITATION WHEREAS THE PLAINS
HAD 112 PERCENT OF AVERAGE PRECIPITATION.

STORED WATER IN THE SOUTH PLATTE BASIN STORED WATER WAS 133 PERCENT
OF AVERAGE. 

PRECIPITATION MAPS

November 2014	WY 2015
November 2014 Precipitation Percent of 1981-2010 Average	WY2015 Precipitation as Percent of 1981-2010 Average
November 2014 Basin Mean Precipitation	WY2015 Basin Mean Precipitation
November 2014 MBRFC Basin Mean Precipitation	WY2015 MBRFC Basin Mean Precipitation