Winter Storm in Western Lemhi County, Idaho

Winter Storm November 18, 2015 · Western Lemhi County, Idaho

What the National Weather Service wrote

The Morgan Creek SNOTEL at 7600 ft reported light snow overnight, with nearby winds at Skull Gulch gusting to 56 mph, making for dangerous back-country conditions.

The wider storm

A strong jet aloft with a core wind speed of 170+ mph helped drive a fast moving cold front which brought high winds to many locations across the Northern Rockies. Snow above 5500 feet lead to winter storm conditions for high passes and backcountry users (hunting season still in progress). Lower atmosphere standardized wind anomalies ranged between +3 and +4 for this time of year, indicating a once-in-10-year wind event.

Source: NOAA Storm Events Database, event 607331. Narratives are written by the National Weather Service forecast office that issued the report.

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