Extreme Cold/Wind Chill — Shirley Basin, Wyoming

2023-01-30 to 2023-01-31 · Shirley Basin, Wyoming

Event narrative

WYDOT mesonet station Shirley Basin (WY44) along Wyoming Highway 487 reported wind chills as low as 52 degrees below zero.

Wider weather episode

Arctic air mass settled into southeast Wyoming late in the month after much of the region received accumulating snowfall. Wind chills on the morning of the 30th and 31st dropped below 20 degrees below zero with a few sites along and west of the Laramie Range dropping below 30 degrees below zero.

Source: NOAA Storm Events Database, event_id 1072198. Narrative written by the NWS forecast office that issued the report.