Water Supply Conditions in the Missouri River Basin for October 2013

Missouri Basin River Forecast Center
Water Supply Statement
Issued in cooperation with the Natural
Resources Conservation Service

UPPER MISSOURI BASIN

OCTOBER PRECIPITATION WAS BELOW AVERAGE ACROSS THE UPPER 
MISSOURI BASIN.  BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI 
BASIN INCLUDE: MILK ST. MARY, 63 PERCENT; MILK CANADA, 90 PERCENT; 
LOWER MILK, 39 PERCENT; ABOVE TOSTON, 66 PERCENT; TOSTON TO 
FT. PECK, 83 PERCENT.

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA:  LIMA RESERVOIR 
HAD 77 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 67 PERCENT 
OF AVERAGE WATER, GIBSON RESERVOIR HAD 38 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 142 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 96 PERCENT OF AVERAGE WATER, RESPECTIVELY.

YELLOWSTONE BASIN

PRECIPITATION DURING THE MONTH OF OCTOBER WAS ABOUT 231 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 179 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 206 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, 181 PERCENT OF AVERAGE IN THE LITTLE BIGHORN-
-UPPER TONGUE BASINS, 231 PERCENT OF AVERAGE IN THE POWDER RIVER
BASIN, AND 148 PERCENT OF AVERAGE IN THE LOWER YELLOWSTONE BASIN.

MONTHEND STORAGE WAS 107 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 162 PERCENT OF AVERAGE. IN THE NORTH PLATTE BASIN
BETWEEN SEMINOE RESERVOIR AND GUERNSY RESERVOIR PRECIPITATION WAS 206
PERCENT OF AVERAGE. THE NORTH PLATTE BASIN BELOW GUERNSY RESERVOIR
HAD 285 PERCENT OF AVERAGE PRECIPITATION. THE HIGH ELEVATIONS OF THE
SOUTH PLATTE BASIN HAD 88 PERCENT OF AVERAGE OCTOBER PRECIPITATION
WHEREAS THE PLAINS HAD 121 PERCENT OF AVERAGE PRECIPITATION.

STORED WATER IN THE SOUTH PLATTE BASIN WAS 107 PERCENT OF AVERAGE.

 

PRECIPITATION MAPS

October 2013	WY 2014
October 2013 Precipitation Percent of 1981-2010 Average	WY2014 Precipitation as Percent of 1981-2010 Average
October 2013 Basin Mean Precipitation	WY2014 Basin Mean Precipitation
October 2013 MBRFC Basin Mean Precipitation	WY2014 MBRFC Basin Mean Precipitation