High Wind — Cascade County Below 5000ft, Montana

2025-12-15 to 2025-12-16 · Cascade County Below 5000ft, Montana

Event narrative

ASOS station KGTF Great Falls Airport, AWOS station K1AM Raynesford, MTM76 Cascade E MDA, and MT mesonet stations Eden NW and Sun River SE all measured gusts of 58 mph or greater, with Sun River SE measuring sustained winds of 40 mph or greater over at least an hour. The peak observed gust was 64 mph at Sun River SE.

Wider weather episode

Strong zonal flow ahead of an initial shortwave during the afternoon of the 15th was translated to the surface through early on the 16th. These winds were stronger and more widespread than the previous event a day prior, but paled in comparison to the winds that developed just a day or so later on the 17th.

Source: NOAA Storm Events Database, event_id 1303307. Narrative written by the NWS forecast office that issued the report.