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:  December 12, 2007

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

PRECIPITATION IN MONTANA WAS BELOW AVERAGE WITH AMOUNTS RANGING
FROM 0 PERCENT OF AVERAGE (0.00 IN.) AT SEVERAL LOCATIONS TO
87 PERCENT OF AVERAGE (5.20 IN.) AT DARKHORSE LAKE, MONTANA.
PRECIPITATION IN WYOMING WAS BELOW AVERAGE. REPORTS RANGED FROM 0
PERCENT OF AVERAGE (0.00 IN.) AT SEVERAL LOCATIONS TO 85 PERCENT OF
AVERAGE (4.50 IN.) AT EVENING STAR, WYOMING. PRECIPITATION IN
NORTHEASTERN COLORADO WAS BELOW AVERAGE, WITH REPORTS RANGING FROM
0 PERCENT OF AVERAGE (0.00 IN.) AT JULESBURG, CO TO 37 PERCENT OF
AVERAGE (2.40 IN.) AT TOWER, COLORADO.

BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI BASIN:

BASIN AVERAGE PRECIPITATION
MILK ST. MARY                                 60%
MILK CANADA                                   36%
ABOVE TOSTON                                  73%
TOSTON TO FT. PECK                            77%
LOWER MILK                                    33%
UPPER YELLOWSTONE                             82%
WIND RIVER                                    31%
BIGHORN                                       41%
LITTLE BIGHORN TONGUE                         45%
POWDER                                        23%
LOWER YELLOWSTONE                             33%
UPPER NORTH PLATTE                            35%
LOWER NORTH PLATTE                            22%
NORTH PLATTE PLAINS                           27%
SOUTH PLATTE MOUNTAINS                        35%
SOUTH PLATTE PLAINS                           26%

November 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

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