Wyoming Water Supply Outlook--February 14, 2011

...Normal to above normal spring and summer runoff volumes are expected for almost all of Wyoming's major watersheds...

...Below normal water supply numbers are forecasted over the Sweetwater, Middle Fork of the Powder, and Greybull Watersheds...

Mountain snowpack (as of early February) across Wyoming continues to be above normal at 110 - 120 percent of average. Snowpack "water" numbers and/or snow water equivalent (SWEs) figures at the beginning of February were the highest across southern Wyoming--with 120 to 140 percent of normal.  SWEs across the rest of Wyoming varied from 100 to 140 percent of normal.

Normal to above normal (95 to 140 percent) snowmelt streamflow volumes are expected across the almost every major drainage basin across Wyoming.   

The Sweetwater, Greybull , and the Middle Fork of the Powder Basins are expected to see below average snowmelt streamflow volumes. (80 to 90 percent of normal)

 The latest Wyoming water supply outlook graphic:



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