March Wyoming Water Supply Update

February precipitation over many of the major watersheds across Wyoming was near normal to above normal. In fact, precipitation totals across the the Big Horn (178% of average), Powder (168% of average),and Tongue (140% of average) Drainages were much above average. The Wind, Sweetwater, and Lower North Platte Basins recorded much below average precipitation during February.

Snow water equivalents (SWEs) in the Wyoming mountain snowpack remained 70 to 80 percent of average throughout Febraury.  However, SWEs across the Larmie Basin still remained near 100 percent of normal.

Snowmelt streamflow volumes are expected to be below normal across a majority of watersheds in Wyoming.  Near normal snowmelt streamflow volumes are forecasted for the Laramie Basin. 


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