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:  November 9, 2007

PRECIPITATION WAS AVERAGE TO ABOVE AVERAGE ACROSS THE ENTIRE MISSOURI
BASIN DURING THE MONTH OF OCTOBER. STREAMFLOW DATA INDICATES THE
FLOWS FOR OCTOBER REMAIN BELOW AVERAGE.

PRECIPITATION IN MONTANA WAS ABOVE AVERAGE WITH AMOUNTS RANGING
FROM 0 PERCENT OF AVERAGE (0.00 IN.) AT BIG SANDY 4SE, MONTANA TO
265 PERCENT OF AVERAGE (2.04 IN.) AT WISE RIVER 3SW, MONTANA.
PRECIPITATION IN WYOMING WAS ABOVE AVERAGE. REPORTS RANGED FROM 60
PERCENT OF AVERAGE (0.82 IN.) AT UPTON, WYOMING TO 466 PERCENT OF
AVERAGE (1.77 IN.) AT DEAVER, WYOMING. PRECIPITATION IN NORTHEASTERN
COLORADO WAS ABOVE AVERAGE, WITH REPORTS RANGING FROM 14 PERCENT
OF AVERAGE (0.10 IN.) AT GENOA 1W, CO TO 263 PERCENT OF AVERAGE
(2.26 IN.) AT GLEN HAVEN, COLORADO.

BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN:

BASIN AVERAGE PRECIPITATION
MILK ST. MARY                                 94%
MILK CANADA                                   80%
ABOVE TOSTON                                 173%
TOSTON TO FT. PECK                           127%
LOWER MILK                                   139%
UPPER YELLOWSTONE                            184%
WIND RIVER                                   144%
BIGHORN                                      226%
LITTLE BIGHORN TONGUE                        159%
POWDER                                       118%
LOWER YELLOWSTONE                            106%
UPPER NORTH PLATTE                           124%
LOWER NORTH PLATTE                           136%
NORTH PLATTE PLAINS                          224%
SOUTH PLATTE MOUNTAINS                       122%
SOUTH PLATTE PLAINS                           94%

October 2007 Basin Mean Precipitation

OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA, LIMA
RESERVOIR HAD 52 PERCENT AVERAGE STORAGE; CLARK CANYON WAS
HOLDING 56 PERCENT OF AVERAGE WATER, GIBSON RESERVOIR HAD
31 PERCENT OF AVERAGE STORED WATER AND FRESNO RESERVOIR HAD
71 PERCENT OF AVERAGE STORED WATER. OF THE THREE MAJOR
HYDROELECTRIC RESERVOIRS IN MONTANA, CANYON FERRY AND FORT
PECK HAD MONTHEND STORAGE IN THE AVERAGE RANGE; 87 AND 55
PERCENT OF AVERAGE WATER, RESPECTIVELY. BIGHORN RESERVOIR
WAS HOLDING 96 PERCENT OF AVERAGE STORED WATER.

RUNOFF DURING OCTOBER, AS INDICATED BY U.S. GEOLOGICAL SURVEY LONG
TERM GAGING STATIONS, WAS BELOW AVERAGE. THE MARIAS RIVER NEAR
SHELBY, MONTANA HAD 56 PERCENT OF AVERAGE RUNOFF. THE YELLOWSTONE
RIVER WAS ESTIMATED TO HAVE HAD 79 PERCENT OF AVERAGE RUNOFF AT
CORWIN SPRINGS, WHILE AT BILLINGS, MONTANA RUNOFF WAS 75 PERCENT OF
AVERAGE.

PRECIPITATION MAPS

October 2007	WY 2008
October 2007 Precipitation Percent of 1971-2000 Average	WY2008 Precipitation as Percent of 1971-2000 Average
October 2007 Basin Mean Precipitation	WY2008 Basin Mean Precipitation
October 2007 MBRFC Basin Mean Precipitation	WY2008 MBRFC Basin Mean Precipitation