Moderate Snowmelt Flood Potential for:
The Powder/Tongue Headwater Basins
The Upper North Platte Basin…to include the Encampment River (from headwaters up to Saratoga)
Portions of the Little Snake River Basin
Low to Moderate Snowmelt Flood Potential for:
Laramie Headwater Basins (up to Laramie)
North/South Forks of the Shoshone Basin (headwaters)
Headwater locations of the Tongue and Powder Watersheds continued to have above normal snow water equivalents (SWEs) at the beginning of February. Headwater locations along the Upper North Platte and Little Snake Drainages also had above normal SWEs in the beginning of February. All other headwater basins in Wyoming had near normal to just below normal SWEs by the beginning of the month.
The February updated spring 2008 snowmelt flood potential outlook calls for a moderate potential for headwater snowmelt flooding across the Tongue, Powder, Upper North Platte, and Little Snake Basins. A low to moderate snowmelt flood potential is expected for headwater locations along the Laramie, Shoshone, and Salt River Watersheds. All other headwater locations across Wyoming can expect a generally low potential for flooding due to springtime snowmelt.
The complete updated Wyoming Spring 2009 Snowmelt Runoff Flood Potential Outlook graphic:
Salt River Basin