High Wind — Helena Valley, Montana

2025-12-11 · Helena Valley, Montana

Event narrative

ASOS station KHLN Helena Airport measured two gust sin excess of 58 mph, including a peak of 64 mph.

Wider weather episode

Another shortwave parading across the Northern Rockies within a zonal flow aloft promoted another windy period December 10th into the 11th. While the strongest gusts were more isolated than previous events, there were still plenty of reports along and near the Continental Divide.

Source: NOAA Storm Events Database, event_id 1299081. Narrative written by the NWS forecast office that issued the report.