Heavy Snow in Gallatin Valley, Montana

Heavy Snow February 17, 2025 – February 18, 2025 · Gallatin Valley, Montana

What the National Weather Service wrote

Trained spotter reports 8.5 inches of new snow over 12 hours near Church Hill. Criteria time estimated.

The wider storm

A stout closed low over Manitoba swung a shortwave around its western periphery and then southward toward the Northern Rockies Feb 16. The wave stalled over MT, resulting in a strongly cyclonic flow aloft, while the main upper disturbance exited eastward.. This allowed for a long duration snow event that lasted into the 18th.

After this system cleared out, a strong surface high resulted in another period of extreme cold. This episode will also serve as the location for additional extreme cold highlights from June 16 through the morning of the 19th.

Source: NOAA Storm Events Database, event 1245088. Narratives are written by the National Weather Service forecast office that issued the report.

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