Extreme Cold/Wind Chill — Upper Green River Basin Foothills, Wyoming

2017-01-05 to 2017-01-06 · Upper Green River Basin Foothills, Wyoming

Event narrative

Frigid temperatures occurred throughout the region. Some of the coldest temperatures included minus 44 degrees at Bondurant and minus 36 degrees at the Pinedale airport.

Wider weather episode

A combination of an arctic air mass, a clear sky, a long early January night and a deep, fresh snow pack brought frigid temperatures to much of western and central Wyoming. Four different counties recorded low temperatures under minus 40, including a low of minus 45 East of Rock Springs. All eleven counties in the County Warning Area recorded a temperatures of -30 or lower on the night of January 5-6, 2017.

Source: NOAA Storm Events Database, event_id 669768. Narrative written by the NWS forecast office that issued the report.