Wyoming Spring Runoff 2020 Flood Potential--issued April 8th

Extremely Critical Fire Weather in New Mexico; Enhanced Severe Thunderstorm Risk in Central U.S.

High winds and very dry conditions will bring extremely critical fire weather over a large part of New Mexico today. Red Flag and High Wind Warnings have been issued. Isolated to scattered severe thunderstorms may produce large to very large hail and localized damaging winds late this afternoon into evening from the eastern Central Plains to the Upper Midwest. Read More >

SYNOPSIS

Early April snowpack and/or SWEs were above average (105 to 115% of median) across almost all major basins in Wyoming.

Above average snow depths across far western Wyoming.

Average soil moisture percentages across basins in northeastern Wyoming and portions of the Wind River Basin; Below average soil moisture percentages across southern Wyoming.

Widespread pine bark beetle damage (2010 to 2018) across the Upper North Platte, Little Snake, Laramie, and Wind River Basins.

No significant precipitation trends during the spring runoff season (May – July). Above average temperatures are expected across central to western Wyoming during the runoff season.

HIGHLIGHTS

Low to Moderate potential for flooding due to spring snowmelt runoff across portions of the Salt River Basin (far western Wyoming) and portions of the Little Laramie River Basin. All other headwater basins will generally have a Low potential for snowmelt runoff flooding.

Latest Wyoming Spring Flood Potential graphic: