Extreme Cold/Wind Chill in Lost River Valleys, Idaho

Extreme Cold/Wind Chill January 20, 2025 · Lost River Valleys, Idaho

What the National Weather Service wrote

Extreme cold wind chills affected the Lost River Valleys with the coldest reading -32 in Arco.

The wider storm

A strong Canadian cold front brought the coldest temperatures of the winter season to southeast Idaho. Several apparent temperature readings of -20 to -55 degrees were recorded after midnight through mid morning on the 20th.

Source: NOAA Storm Events Database, event 1233240. Narratives are written by the National Weather Service forecast office that issued the report.

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