Winter Storm — Southwest Big Horn Basin, Wyoming

2018-11-24 · Southwest Big Horn Basin, Wyoming

Event narrative

Heavy snow fell throughout much of Hot Springs County. Amounts of 6 to 10 inches were measured through Thermopolis to 12 inches 8 miles WNW of Thermopolis.

Wider weather episode

A cold front swept across western and central Wyoming from Friday into Saturday and brought heavy snow and difficult travel conditions to many areas. The heaviest snow fell in Absarokas where 21 inches fell in Pahaska. A foot or more of new snow also fell in portions of Yellowstone Park and the Tetons. The heaviest snow in the lower elevations fell in northern Wyoming. Some notable amounts include 10 inches at Bondurant, 9 inches in Cody and 10 inches in Thermopolis. Even in areas that received less snow, the combination of snow, gusty wind and black ice from rapidly falling temperatures brought very difficult travel conditions. Interstates 25 and 80 were shut down for a time, as well South Pass over the Wind River Mountains.

Source: NOAA Storm Events Database, event_id 788477. Narrative written by the NWS forecast office that issued the report.