Wyoming Water Supply Outlook---issued February 10, 2012

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

...Below normal water supply numbers are forecasted over central and southern Wyoming basins…

…Wyoming reservoir storage continues to average over 100 percent of normal with carryover storages from the record streamflow volumes of last year…

Mountain snowpack across Wyoming is generally below normal at near 88 to 93 percent of normal.  Snowpack "water" numbers and/or snow water equivalent (SWEs) figures at the beginning of February were the highest across northern Wyoming—varying between 95 to 125 percent of normal.  SWEs across the rest of Wyoming varied from 60 to 85 percent of normal.

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

Major watersheds across central and southern Wyoming, to include the Upper Bear, the Wind, 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 are over 100 percent in February and are the result of carryover storages from the record streamflow volumes from last year.

 The latest Wyoming water supply outlook graphic:



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