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April showers bring May flowers
May 07, 2009
MAY 1 MOUNTAIN SNOWPACK AND STREAMFLOW FORECASTS NEAR TO ABOVE AVERAGE
Bozeman, MT- Snowfall the last part of April helped the north central mountains make substantial snow water increase. Late April snow water percentage increase in the Missouri Mainstem was 13 percent. and the Missouri Headwaters percentage increase was 17 percent. West of the Divide percentage increases ranged from 4 to 9 percent. Mountain snowpack state-wide was generally near to above average and below last year. April mountain precipitation for the Columbia River Basin was 76 percent of average; Missouri River Basin was 118 percent of average; and Yellowstone River Basin was 112 percent of average.
State-wide mountain snow water contents were 110 percent of average and 89 percent of those on May first last year. Snowpack in the Columbia River Basin was 102 percent of average and 76 percent of last year, the Missouri River Basin was 116 percent of average and 100 percent of last year, and the Yellowstone River Basin was 110 percent of average and 104 percent of last year.
State-wide, streamflows are forecast to average 93 to 105 percent. West of the Divide, streamflows are forecast to average 95 to 104 percent. East of the Divide, streamflows are forecast to average 92 to 107 percent of average.
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