Wyoming Water Supply Outlook---as of March 9, 2012

...Normal to above normal spring and summer runoff volumes are expected over watersheds in northern and central Wyoming…

...Below normal water supply numbers continue to be forecasted over southern Wyoming basins…

…Wyoming reservoir storages continue to be above average in March…

Mountain snowpack across Wyoming is generally slightly above normal at near 100 to 107 percent of normal.  Snowpack "water" numbers and/or snow water equivalent (SWEs) figures at the beginning of March were the highest across northern Wyoming—varying between 100 to 130 percent of normal.  SWEs across the rest of Wyoming varied from 65 to 95 percent of normal.

Normal to above normal (90 to 120 percent) snowmelt streamflow volumes continue to be expected across major basins across northern and central Wyoming---which includes the Shoshone, the Powder, the Wind, the Big Horn and the Tongue Watersheds.

Major watersheds across southern Wyoming, to include the Upper Bear, the Upper North Platte, and the Green River Basins, are expected to see below average streamflow volumes (65 to 90 percent of normal) during the upcoming spring and summer runoff.

Reservoirs storages across Wyoming continue to be above average at 105 -115 percent in March.

 The latest Wyoming water supply outlook graphic:



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