Winter Storm — Upper Wind River Basin, Wyoming

2023-11-23 to 2023-11-24 · Upper Wind River Basin, Wyoming

Event narrative

Snowfall amounts around Dubois ranged from 6 to 12 inches.

Wider weather episode

Low pressure crossing Wyoming combined with deep moisture to bring locally heavy snow to portions of central Wyoming. The heaviest snow fell across Fremont County, where a band of heavy snow set up during the afternoon and evening hours of November 23rd. Snowfall rates reached 3 inches an our at times. There were numerous reports of over 16 inches from Lander to Riverton. Over 2 feet of snow fell outside of Lander. Amounts around Riverton ranged from 16 to 22 inches. At the COOP observer near downtown Riverton, a daily snowfall record of 19.2 inches was set. Over 6 inches of snow also fell in the lower elevations of Casper, Park, Natrona and Johnson Counties. Portions of the Wind River Mountains received over 2 feet of snow. The heavy snow and gusty wind led to road closures over portions of the area, including Highway 28 over South Pass.

Source: NOAA Storm Events Database, event_id 1144894. Narrative written by the NWS forecast office that issued the report.