Heavy Snow — Lower Clark Fork Region, Montana

2024-11-16 to 2024-11-17 · Lower Clark Fork Region, Montana

Event narrative

At 0048, chain requirements were enacted for Interstate 90 at Lookout Pass as webcams confirmed snow-covered roads. The hazardous conditions were driven by heavy snow, with the KMLP ASOS station above the Lookout Pass summit reporting snowfall rates of approximately one inch per hour.

Wider weather episode

A Pacific trough and cold front led to heavy mountain snow along the ID/MT border above 4,000 feet.

Source: NOAA Storm Events Database, event_id 1220426. Narrative written by the NWS forecast office that issued the report.