UPPER MISSOURI BASIN
SEPTEMBER PRECIPITATION WAS ABOVE AVERAGE ACROSS THE UPPER MISSOURI
BASIN. BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN INCLUDE:
MILK ST. MARY, 127 PERCENT; MILK CANADA, 114 PERCENT; LOWER MILK, 190
PERCENT; ABOVE TOSTON, 164 PERCENT; TOSTON TO FT. PECK, 178 PERCENT.
OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA: LIMA RESERVOIR
HAD 88 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 55 PERCENT OF
AVERAGE WATER, GIBSON RESERVOIR HAD 23 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 126 PERCENT OF AVERAGE STORED WATER.
THE MAJOR HYDROELECTRIC RESERVOIRS IN MONTANA (CANYON FERRY AND
FORT PECK) HAD MONTHEND STORAGE IN THE ABOVE AVERAGE RANGE; 92 AND
109 PERCENT OF AVERAGE WATER, RESPECTIVELY.
YELLOWSTONE BASIN
PRECIPITATION DURING THE MONTH OF SEPTEMBER WAS ABOUT 191 PERCENT OF
AVERAGE IN THE WIND RIVER BASIN ABOVE BOYSEN RESERVOIR, 138 PERCENT
OF AVERAGE IN THE UPPER YELLOWSTONE BASIN, 234 PERCENT OF AVERAGE
IN THE BIGHORN BASIN, AND 256 PERCENT OF AVERAGE IN THE LITTLE
BIGHORN BASINS-UPPER TONGUE BASINS, 222 PERCENT OF AVERAGE IN THE
POWDER RIVER BASIN, AND 233 PERCENT OF AVERAGE IN THE LOWER
YELLOWSTONE BASIN.
MONTHEND STORAGE WAS 99 PERCENT OF AVERAGE AT BIGHORN RESERVOIR ON
THE WYOMING/MONTANA BORDER.
PLATTE BASIN
PRECIPITATION DURING SEPTEMBER IN THE PLATTE BASIN WAS BELOW
AVERAGE. SEPTEMBER PRECIPITATION IN THE NORTH PLATTE BASIN
ABOVE SEMINOE RESERVOIR WAS 56 PERCENT OF AVERAGE. IN THE
NORTH PLATTE BASIN BETWEEN SEMINOE RESERVOIR AND GUERNSY
RESERVOIR PRECIPITATION WAS 94 PERCENT OF AVERAGE. THE NORTH
PLATTE BASIN BELOW GUERNSY RESERVOIR HAD 64 PERCENT OF AVERAGE
PRECIPITATION. THE HIGH ELEVATIONS OF THE SOUTH PLATTE BASIN HAD
25 PERCENT OF AVERAGE SEPTEMBER PRECIPITATION WHEREAS THE PLAINS
HAD 49 PERCENT OF AVERAGE PRECIPITATION.
STORED WATER IN THE SOUTH PLATTE BASIN STORED WATER WAS 111 PERCENT
OF AVERAGE.
