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

Severe Weather and Heavy Rain Along the Central Gulf Coast; Pacific Storm in the Northwest

Showers and thunderstorms pose a risk for a couple of tornadoes, occasional damaging gusts, and some scattered flash flooding along the central Gulf Coast. A Pacific storm system continues to bring gusty winds, lower elevation rain, and hazardous mountain snow to the northwestern U.S.. 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: