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Heavy Snow in Lower Clark Fork Region, Montana
Heavy Snow September 13, 2017 – September 14, 2017 · Lower Clark Fork Region, Montana
What the National Weather Service wrote
Lookout Pass received 15 inches of snow within 12 hours and this created hazardous conditions. Montana Department of Transportation closed I-90 for 6 hours from 1 am to 5 am MST.
The wider storm
A large trough with a subtropical moisture feed brought heavy snow to the mountains of western Montana. Interstate 90 was closed for a period due to the snow.
Source: NOAA Storm Events Database, event 718420. Narratives are written by the National Weather Service forecast office that issued the report.
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