Blizzard — Northeast Johnson County, Wyoming

2022-04-23 · Northeast Johnson County, Wyoming

Event narrative

Heavy snow combined with winds gusting as high as 76 mph produced blizzard conditions across northern Johnson County that lead to numerous road closures. Notable wind gusts included 76 mph at the Johnson County airport and 77 mph along Interstate 90.

Wider weather episode

Low pressure developed over Colorado and moved rapidly into the Plains States. Moisture wrapped around the low and brought heavy snow and strong wind to portions of central Wyoming. Hardest hit was northern Johnson County where heavy snow and winds gusting over 70 mph at times brought dangerous travel conditions that led to road closures, including Interstates 80 and 25. Heavy snow fell across much of central Wyoming, with some of the more notable amounts including: 9.5 inches in Casper, 11.5 inches near Meeteetse, and 11 inches at Sweetwater Station. The highest amount in the mountains was 16 inches, which fell on Casper Mountain as well as in the western Big Horn Range.

Source: NOAA Storm Events Database, event_id 1020649. Narrative written by the NWS forecast office that issued the report.