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Heavy Snow in Southern Rocky Mountain Front, Montana
Heavy Snow October 12, 2025 – October 13, 2025 · Southern Rocky Mountain Front, Montana
What the National Weather Service wrote
Snotel equipment at Dupuyer Creek estimated 9 inches new snow the evening of the 12th into the 13th.
The wider storm
Low-level northeasterly upslope flow at the surface combined with a relatively warm/moist airmass overrunning the cooler surface airmass to result in heavy snow, mostly along the Rocky Mountain Front and into Helena.
Source: NOAA Storm Events Database, event 1294336. Narratives are written by the National Weather Service forecast office that issued the report.
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