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Extreme Cold/Wind Chill in Northwest Beaverhead County, Montana

Extreme Cold/Wind Chill February 23, 2023 · Northwest Beaverhead County, Montana

What the National Weather Service wrote

Mesonet station MTBHP Big Hole Pass measured wind chills less than -40 F on two instances, including a minimum of -45 F.

The wider storm

After loss of diurnal heating during the day on the 23rd of February, another round of frigid wind chills took place before Chinook winds were able to warm most areas up later on the 24th.

Source: NOAA Storm Events Database, event 1073984. Narratives are written by the National Weather Service forecast office that issued the report.

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