Cold/Wind Chill — Upper Wind River Basin, Wyoming

2022-02-22 to 2022-02-23 · Upper Wind River Basin, Wyoming

Event narrative

Typically known as the Valley of the Warm Winds, the area around Dubois was anything but that. The low temperature bottomed out at 22 below zero at Dubois and 20 below zero at Crowheart, while the nearby mountain locale of Union Pass dropped to 28 below zero.

Wider weather episode

The combination of a fresh snowpack, a Canadian airmass, and light wind led to temperatures dropping to less than 20 below zero across many of the lower elevations of central Wyoming. Some of the coldest temperatures included 29 below zero near Ten Sleep in Washakie County, 26 below zero west of Cody, and 23 below zero at Powder River in Natrona County.

Source: NOAA Storm Events Database, event_id 1006664. Narrative written by the NWS forecast office that issued the report.