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Avalanche in Southern Clearwater Mountains, Idaho

Avalanche January 7, 2022 · Southern Clearwater Mountains, Idaho

What the National Weather Service wrote

A large avalanche, more than 10 feet deep and up to 40 feet wide was triggered by heavy snow near milepost 136 on US-12. This along with treefall caused the highway to be closed for 3 days. The last time an avalanche crossed US-12 was in 2008. The date and time of the avalanche is a coarse estimate.

The wider storm

An atmospheric river brought very heavy snow to north-central Idaho that triggered multiple impacts including treefall, avalanche, road closures, and hazardous travel.

Source: NOAA Storm Events Database, event 1004370. Narratives are written by the National Weather Service forecast office that issued the report.

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