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Winter Storm in Big Lost Highlands-copper Basin, Idaho
Winter Storm March 15, 2025 – March 17, 2025 · Big Lost Highlands-copper Basin, Idaho
What the National Weather Service wrote
A long period of snowfall brought at least 8 to 18 inches of snow to the Big Lost Highlands and Copper Basin. The Garfield Ranger Station measured 12.3 inches of snow, while the Smiley Mountain SNOTEL measured 34.4 inches for the event total.
The wider storm
A strong winter storm sequence, initially targeting the central ID mountains and Upper Snake Highlands with heavy snow. Strong wind gusts and accumulating snow then moved into eastern Idaho where the southeast highlands saw accumulating snow with slippery road conditions.
Source: NOAA Storm Events Database, event 1265210. Narratives are written by the National Weather Service forecast office that issued the report.
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