Missouri River Basin Streamflow Fcst as of April 1, 2016 Missouri River Basin Mountain Snowpack as of April 1, 2016
Upper Missouri Basin
THE HIGH ELEVATION SNOW PACK IN THE UPPER MISSOURI BASIN AS OF
APRIL 1 WAS NEAR TO BELOW AVERAGE. THE SNOW PACK ABOVE TOSTON,
MONTANA WAS 103 PERCENT OF AVERAGE. THE SNOW PACK BETWEEN TOSTON
AND FORT PECK, MONTANA WAS 89 PERCENT. THE SNOW PACK IN THE
ST MARY AND MILK RIVER BASINS WAS 70 PERCENT.
MARCH PRECIPITATION ACROSS THE UPPER MISSOURI BASIN RANGED FROM
AVERAGE TO BELOW AVERAGE. BASIN PRECIPITATION SUMMARIES FOR THE MISSOURI
BASIN INCLUDE: MILK ST. MARY, 113 PERCENT; MILK CANADA, 59 PERCENT;
LOWER MILK, 51 PERCENT; ABOVE TOSTON, 115 PERCENT; TOSTON TO
FT. PECK, 79 PERCENT.
March 2016 Upper Missouri Mean Precip Oct-Mar WY2016 Upper Missouri Mean Precip
STREAM FLOW IN THE UPPER MISSOURI BASIN IS FORECAST TO BE
NEAR AVERAGE DURING THE UPCOMING SPRING AND SUMMER. THE ST.
MARY RIVER IS FORECAST TO HAVE 95 PERCENT OF AVERAGE APRIL-SEPTEMBER
FLOWS. RUNOFF IS EXPECTED TO RANGE AROUND 90 PERCENT OF AVERAGE
FOR THE MISSOURI BASIN ABOVE FORT PECK, MONTANA.
Upper Missouri April 1, 2016 Spring and Summer Streamflow Forecasts
OF THE FOUR MAJOR IRRIGATION RESERVOIRS IN MONTANA: LIMA RESERVOIR
HAD 74 PERCENT AVERAGE STORAGE, CLARK CANYON WAS HOLDING 84 PERCENT OF
AVERAGE WATER, GIBSON RESERVOIR HAD 75 PERCENT OF AVERAGE STORED
WATER, AND FRESNO RESERVOIR HAD 109 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; 101 AND 115 PERCENT OF AVERAGE WATER, RESPECTIVELY.
Yellowstone Basin
THE HIGH ELEVATION SNOW PACK IN THE YELLOWSTONE BASIN WAS NEAR AVERAGE
ON APRIL 1. THE SNOW PACK IN THE UPPER YELLOWSTONE BASIN WAS
93 PERCENT OF AVERAGE. THE SNOW PACKS IN THE WIND, BIGHORN, AND
SHOSHONE BASINS WERE 108, 89, AND 95 PERCENT OF AVERAGE,
RESPECTIVELY. THE SNOW PACKS IN THE TONGUE AND POWDER BASINS WERE
73 AND 92 PERCENT OF AVERAGE, RESPECTIVELY.
PRECIPITATION DURING MARCH WAS NEAR TO ABOVE AVERAGE. THE UPPER
YELLOWSTONE RIVER BASIN RECEIVED 126 PERCENT OF AVERAGE PRECIPITATION
WHILE THE LOWER YELLOWSTONE BASIN REPORTED 82 PERCENT OF AVERAGE.
THE BIGHORN BASIN RECEIVED 155 PERCENT OF AVERAGE PRECIPITATION
WHILE THE WIND RIVER BASIN RECEIVED 272 PERCENT OF AVERAGE.
THE LITTLE BIGHORN - UPPER TONGUE BASIN RECEIVED 140 PERCENT OF
AVERAGE AND THE POWDER RIVER HAD 108 PERCENT OF AVERAGE PRECIPITATION.
March 2016 Yellowstone Mean Precip Oct-Mar WY2016 Yellowstone Mean Precip
FORECAST STREAM FLOW IN THE YELLOWSTONE BASIN IS BELOW TO BELOW
AVERAGE RANGE FOR THE UPCOMING SPRING AND SUMMER. STREAM
FLOW FOR THE WIND-BIGHORN BASIN ABOVE ST. XAVIER, MONTANA IS
FORECAST TO BE ABOUT 104 PERCENT OF AVERAGE. FLOW IN THE
TONGUE BASIN IS EXPECTED TO BE 65 PERCENT OF AVERAGE. FLOWS IN THE
POWDER RIVER ARE EXPECTED TO BE ABOUT 77 PERCENT OF AVERAGE.
MONTHEND STORAGE AT BOYSEN RESERVOIR WAS 112 PERCENT OF AVERAGE.
STORED WATER IN BUFFALO BILL RESERVOIR WAS 124 PERCENT OF AVERAGE.
MONTHEND STORAGE WAS 103 PERCENT OF AVERAGE AT BIGHORN RESERVOIR.
Yellowstone April 1, 2016 Spring and Summer Streamflow Forecasts
Platte Basin
THE HIGH ELEVATION SNOW PACK IN THE UPPER NORTH PLATTE BASIN WAS
102 PERCENT OF AVERAGE ON APRIL 1. THE SNOW PACK IN THE NORTH
PLATTE BASIN BELOW SEMINOE RESERVOIR WAS 107 PERCENT OF AVERAGE.
THE SNOW PACK IN THE SOUTH PLATTE BASIN WAS 114 PERCENT OF AVERAGE.
MARCH PRECIPITATION ACROSS THE PLATTE BASIN WAS ABOVE
AVERAGE. PRECIPITATION IN THE NORTH PLATTE BASIN ABOVE SEMINOE RESERVOIR
WAS 161 PERCENT OF AVERAGE. IN THE NORTH PLATTE BASIN BETWEEN SEMINOE
RESERVOIR AND GUERNSY RESERVOIR PRECIPITATION WAS 180 PERCENT OF AVERAGE.
THE NORTH PLATTE BASIN BELOW GUERNSY RESERVOIR HAD 240 PERCENT OF AVERAGE
PRECIPITATION. THE HIGH ELEVATIONS OF THE SOUTH PLATTE BASIN HAD 117
PERCENT OF AVERAGE PRECIPITATION WHEREAS THE PLAINS HAD 152 PERCENT OF AVERAGE
MARCH PRECIPITATION.
March 2016 Platte Mean Precip Oct-Mar WY2016 Platte Mean Precip
STREAM FLOW IN THE PLATTE BASIN IS FORECAST TO BE NEAR
AVERAGE DURING THE UPCOMING SPRING AND SUMMER.
RUNOFF FOR STREAMS ABOVE SEMINOE RESERVOIR IS FORECAST NEAR
97 PERCENT OF AVERAGE. STREAM FLOWS FOR THE NORTH PLATTE
BELOW SEMINOE RESERVOIR ARE FORECAST TO BE 97 PERCENT OF
AVERAGE. STREAMS IN THE SOUTH PLATTE BASIN ABOVE SOUTH PLATTE,
COLORADO CAN EXPECT 87 PERCENT OF AVERAGE FLOW. FOR THE
REMAINDER OF THE SOUTH PLATTE BASIN FLOWS ARE EXPECTED NEAR
100 PERCENT OF AVERAGE.
STORED WATER IN THE SOUTH PLATTE BASIN WAS 107 PERCENT OF AVERAGE
ON APRIL 1. STORED WATER IN THE NORTH PLATTE BASIN WAS 130
PERCENT OF AVERAGE.
North Platte Streamflow Fcst South Platte Streamflow Fcst
