Initial January 2011 Wyoming Spring Snowmelt Flood Potential Outlook---issued January 20, 2011

Snow water equivalents (SWEs) in early January were much above average across western and southeastern Wyoming headwater watersheds.  In fact, SWEs across the Upper North Platte, Little Snake, and Laramie Basins were 130 to 150 percent of average by early January.  Headwater creeks and streams along the southern Wind River Basin also had above normal snowpack “water” numbers in early January.   Interestingly, the above normal SWE numbers over a majority of headwaters in southeastern Wyoming are higher than last year for early January.

The initial spring 2011 snowmelt flood potential outlook calls for:

...Moderate to High potential for snowmelt runoff flooding along the Little Snake River (from Savery to Baggs), the Encampment River, the Upper North Platte River (Saratoga and above), and the Laramie River (Laramie and above)...

Moderate to High  potential for headwater snowmelt flooding is also expected across the  southern Wind River Basin (Little Popo Agie River), Sweetwater River (Sweetwater Station and above),,,and headwater locations along the Bear River Basin…

…All other headwater locations across Wyoming can expect a generally low to moderate potential for flooding due to springtime snowmelt...

The complete Wyoming Spring 2010 Snowmelt Runoff Flood Potential Outlook graphic:



Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.