Water Supply Statement for the Missouri River Basin issued for October 2016

Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service
Issued:  November 14, 2016

UPPER MISSOURI BASIN

OCTOBER PRECIPITATION WAS ABOVE AVERAGE ACROSS THE UPPER MISSOURI
BASIN.  BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN INCLUDE:
MILK ST. MARY, 227 PERCENT; MILK CANADA, 230 PERCENT; LOWER MILK, 458
PERCENT; ABOVE TOSTON, 224 PERCENT; TOSTON TO FT. PECK, 302 PERCENT.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA:  LIMA RESERVOIR
HAD 108 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 63 PERCENT OF
AVERAGE WATER, GIBSON RESERVOIR HAD 43 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 138 PERCENT OF AVERAGE STORED WATER.
THE  MAJOR  HYDROELECTRIC  RESERVOIRS  IN  MONTANA (CANYON  FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE ABOVE AVERAGE RANGE; 91 AND
112 PERCENT OF AVERAGE WATER, RESPECTIVELY.

YELLOWSTONE BASIN

PRECIPITATION DURING THE MONTH OF OCTOBER WAS ABOUT 183 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 223 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 220 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, AND 142 PERCENT OF AVERAGE IN THE LITTLE
BIGHORN BASINS-UPPER TONGUE BASINS, 70 PERCENT OF AVERAGE IN THE
POWDER RIVER BASIN, AND 165 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 OCTOBER IN THE PLATTE BASIN WAS BELOW
AVERAGE. OCTOBER PRECIPITATION IN THE NORTH PLATTE BASIN
ABOVE SEMINOE RESERVOIR WAS 67 PERCENT OF AVERAGE. IN THE
NORTH PLATTE BASIN BETWEEN SEMINOE RESERVOIR AND GUERNSY
RESERVOIR PRECIPITATION WAS 35 PERCENT OF AVERAGE. THE NORTH
PLATTE BASIN BELOW GUERNSY RESERVOIR HAD 18 PERCENT OF AVERAGE
PRECIPITATION. THE HIGH ELEVATIONS OF THE SOUTH PLATTE BASIN HAD
38 PERCENT OF AVERAGE OCTOBER PRECIPITATION WHEREAS THE PLAINS
HAD 39 PERCENT OF AVERAGE PRECIPITATION.

STORED WATER IN THE SOUTH PLATTE BASIN STORED WATER WAS 106 PERCENT
OF AVERAGE.

PRECIPITATION MAPS

October 2016	WY 2017
October 2016 Precipitation Percent of 1981-2010 Average	WY2017 Precipitation as Percent of 1981-2010 Average
October 2016 Basin Mean Precipitation	WY2017 Basin Mean Precipitation
October 2016 MBRFC Basin Mean Precipitation	WY2017 MBRFC Basin Mean Precipitation