Wyoming Water Supply Outlook (June - July)---Final Outlook--June 14, 2011

Well above normal early summer runoff volumes are expected for the Upper and Lower North Platte, the Little Snake, the Laramie, the Upper Bear, and the Powder Drainages…

...Above normal early summer runoff volumes are forecasted for the rest of Wyoming's major watersheds...

Mountain snowpack (as of early June) across Wyoming continues to be well above normal at 327 percent of average. Snowpack "water" numbers and/or snow water equivalent (SWEs) figures at the beginning of June were the highest across southern Wyoming--with 280 to 390 percent of normal.  SWEs across the rest of Wyoming varied from 200 to 280 percent of normal.

Well above snowmelt streamflow volumes are expected across the almost every major drainage basin across Wyoming.   

The Upper and Lower North Platte (including the Laramie), the Little Snake, the Upper Bear, and the Powder Basins are expected to see well above average streamflow volumes (270 to  345 percent of normal) during the early summer runoff. 

The latest Wyoming water supply outlook graphic:

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