Cold/Wind Chill in Northern Valley, Montana

Cold/Wind Chill December 27, 2021 – December 31, 2021 · Northern Valley, Montana

What the National Weather Service wrote

At the Bluff Creek RAWS site (BLUM8), temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the early morning of the 27th into the late night of the 31st. The peak wind chill of -45 was recorded at 7:44 AM on the 27th.

The wider storm

A large arctic air mass descended southward from Canada to spread across our region for multiple days. Re-enforcing cold low pressure disturbances continued to rotate along the edge of this air mass, which supported this prolonged dangerously cold period. For most of these days, enough wind was present to create dangerously cold wind chill values for may locations across northeast Montana, and persisted through New Year's Eve.

Source: NOAA Storm Events Database, event 996475. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.