NWS Missouri River Basin/Pleasant Hill, MO

Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  September 20, 2016

UPPER MISSOURI BASIN

AUGUST PRECIPITATION RANGED FROM BELOW TO ABOVE AVERAGE ACROSS THE UPPER MISSOURI
BASIN.  BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN INCLUDE:
MILK ST. MARY, 141 PERCENT; MILK CANADA, 165 PERCENT; LOWER MILK, 75
PERCENT; ABOVE TOSTON, 33 PERCENT; TOSTON TO FT. PECK, 96 PERCENT.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA:  LIMA RESERVOIR
HAD 64 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 58 PERCENT OF
AVERAGE WATER, GIBSON RESERVOIR HAD 19 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 143 PERCENT OF AVERAGE STORED WATER.
THE  MAJOR  HYDROELECTRIC  RESERVOIRS  IN  MONTANA (CANYON  FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE ABOVE AVERAGE RANGE; 95 AND
112 PERCENT OF AVERAGE WATER, RESPECTIVELY.

YELLOWSTONE BASIN

PRECIPITATION DURING THE MONTH OF AUGUST WAS ABOUT 96 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 66 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 86 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, AND 183 PERCENT OF AVERAGE IN THE LITTLE
BIGHORN BASINS-UPPER TONGUE BASINS, 121 PERCENT OF AVERAGE IN THE
POWDER RIVER BASIN, AND 138 PERCENT OF AVERAGE IN THE LOWER
YELLOWSTONE BASIN.

MONTHEND STORAGE WAS 95 PERCENT OF AVERAGE AT BIGHORN RESERVOIR ON
THE WYOMING/MONTANA BORDER.
 

PLATTE BASIN

PRECIPITATION DURING AUGUST IN THE PLATTE BASIN WAS BELOW
AVERAGE. AUGUST PRECIPITATION IN THE NORTH PLATTE BASIN
ABOVE SEMINOE RESERVOIR WAS 50 PERCENT OF AVERAGE. IN THE
NORTH PLATTE BASIN BETWEEN SEMINOE RESERVOIR AND GUERNSY
RESERVOIR PRECIPITATION WAS 74 PERCENT OF AVERAGE. THE NORTH
PLATTE BASIN BELOW GUERNSY RESERVOIR HAD 136 PERCENT OF AVERAGE
PRECIPITATION. THE HIGH ELEVATIONS OF THE SOUTH PLATTE BASIN HAD
73 PERCENT OF AVERAGE AUGUST PRECIPITATION WHEREAS THE PLAINS
HAD 72 PERCENT OF AVERAGE PRECIPITATION.

STORED WATER IN THE SOUTH PLATTE BASIN STORED WATER WAS 112 PERCENT
OF AVERAGE.

PRECIPITATION MAPS

August 2016	WY 2016
August 2016 Precipitation Percent of 1981-2010 Average	WY2016 Precipitation as Percent of 1981-2010 Average
August 2016 Basin Mean Precipitation	WY2016 Basin Mean Precipitation
August 2016 MBRFC Basin Mean Precipitation	WY2016 MBRFC Basin Mean Precipitation