High Wind — Southern Lewis and Clark, Montana

2022-07-18 · Southern Lewis and Clark, Montana

Event narrative

Trained spotter reported a 66 mph wind gust 11 miles W of Helena.

Wider weather episode

Deep southwesterly flow aloft developed in advance of a vigorous upper-level low leading to the development of storm activity, some severe, across much of the CWA, but particularly along the Hi-Line. Although some hail was produced, this was primarily a strong, gusty wind event.

Source: NOAA Storm Events Database, event_id 1033841. Narrative written by the NWS forecast office that issued the report.