Wyoming Water Supply Outlook---as of April 8, 2011

Well above normal spring and summer runoff volumes are expected for the Upper and Lower North Platte, the Little Snake, the Laramie, the Upper Bear, and portions of the Upper Yellowstone and Snake Drainages…

...Normal to above normal spring and summer runoff volumes are forecasted for the rest of Wyoming's major watersheds...

Mountain snowpack (as of early April) across Wyoming continues to be above normal at 115 - 125 percent of average. Snowpack "water" numbers and/or snow water equivalent (SWEs) figures at the beginning of April were the highest across southern Wyoming--with 125 to 140 percent of normal.  SWEs across the rest of Wyoming varied from 105 to 125 percent of normal.

Near normal to well above normal (90 to 125 percent) snowmelt streamflow volumes are expected across the almost every major drainage basin across Wyoming.   

The Upper and Lower North Platte (including the Laramie) Basins are expected to see well above average streamflow volumes (120 to 155 percent of normal) during the spring and summer runoff. 

The latest Wyoming water supply outlook graphic:



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