National Weather Service United States Department of Commerce


A potent and very moist spring storm produced heavy snow and rain across much of southeast Wyoming and western Nebraska from May 17th through the 19th. Snow amounts across the southeast Wyoming ranged from 4 to 36 inches. This storm produced very heavy snow, especially over the Wyoming mountains and foothills with amounts ranging between 1 and 3 feet. The highest snowfall totals occurred over the I-80 summit between Cheyenne and Laramie.  Across the high plains, rain changed to snow along  I-25 early Thursday morning, with heavy snow falling Thursday and Thursday night.  Some tree damage occurred as well as power outages, with snow accumulating from Cheyenne northward through Douglas.

snow lsr map

Snow reports received on May 19th. 

watches and warnings Weather Story before the Storm

The winter storm watches, warnings, and advisories issued on May 17th

before the onset of the storm. 


May 17th, National Weather Service

Weather Story Graphic

Snow Reports:

Snow reports Map Snow Reports Table


Photos & Video:

1 N Cheyenne Snowfall measurements Horse Creek

Snowfall north Cheyenne, WY

Credit: Amber Reese

Snowfall measurement at Cheyenne, WY

Credit: Oliver Smith

Snowfall at Horse Creek, WY

Credit: Chad Bunch

Happy Jack Rd Cheyenne, WY Cheyenne County

Snowfall near Happy Jack Rd. MM 10

Credit: Shannon Fischer

Snowfall measurement at Chugwater, WY

Credit: Jana Strahan

Tree clean-up after the snow storm at Cheyenne.

Credit: Wyoming Tribune Eagle