Wyoming Water Supply Outlook--March 10th

…Wyoming February precipitation was nearly 180 percent of average...

...Current water year precipitation is averaging nearly 135 percent of normal across Wyoming…

…Mountain snowpack across Wyoming is 120 to 135 percent of average... 

Above normal snowmelt streamflow volumes are expected this runoff season across almost all major basins in Wyoming...

…Wyoming reservoir storages remain around 90 percent of average for February…

February precipitation totals across Wyoming were nearly 180 percent of average. Precipitation numbers varied between 360 percent of normal over the Clark Fork Yellowstone/Shoshone River Drainages to near 100 percent of normal over the Cheyenne/Niobrara Basins (Eastern Wyoming).  Current water year (October 2013 - February 2014) precipitation across Wyoming was nearly 135 percent of average.

Mountain snowpack across Wyoming was 120 to 135 percent of normal by early March.  Snowpack "water" numbers and/or SWEs continued to be the highest across north central Wyoming—varying between 135 to 155 percent of average.  SWEs were the lowest over extreme northwest and northeast Wyoming---varying from 100 to 110 percent of normal.

Above normal (110 to 125 percent) snowmelt streamflow volumes are expected across almost all major basins across Wyoming.  Above average streamflow volumes are expected across the Powder, Tongue, Shoshone and Wind River Watersheds.  Below average streamflow volumes during the upcoming snowmelt season are forecasted for the Little Wind and Sweetwater Watersheds.

Reservoirs storages across Wyoming are slightly below average for March. 

The latest Wyoming water supply outlook graphic:
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