March 2012 Wyoming Spring Snowmelt Flood Potential--issued March 21, 2012

Quick Synopsis:

 

Snow water equivalents (SWEs) continued to steadily increase along the western and eastern slopes of the Big Horn Mountains from February through early March.  Mountain snowpack “water” numbers continued to improve across the rest of Wyoming during the month; but by early March, SWEs continued to be below average to near average across the majority of western, central, and southern Wyoming headwater watersheds.  Headwater creeks and streams along the Shoshone,  Powder, and Tongue Drainages continued to have above normal snowpack “water” numbers by early March.  

 

HIGHLIGHTS:

 

 

...Moderate to High potential for snowmelt runoff flooding along headwater locations along the Powder (Clear Creek) and eastern Big Horn (Shell Creek, Tensleep Creek, and Nowood River) Watersheds...

 

...Moderate potential for snowmelt runoff flooding along the Tongue Watershed headwater streams (Tongue River and Big and Little Goose Creeks),  Middle Fork Powder River (Kaycee), Middle Fork Popo Agie River (Lander) and the Little Wind River (Riverton)...

 

Moderate potential for snowmelt flooding is also expected for small streams and creeks on the north side of the Laramie Range (Elkhorn Creek, Deer Creek, Box Elder Creek)...

 

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

  

Other hydrological information for Wyoming can be found at the NOAA hydrology website:

http://www.crh.noaa.gov/riw/?n=snowpack

 

Monthly Wyoming Hydrologic Summary and Graphics can be found at:

 

http://www.crh.noaa.gov/images/riw/hydro/hydro_report.pdf

 

The current Wyoming Spring 2012 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.