Thunderstorm Wind — Lewis and Clark, Montana

2025-05-10 · near (hln)helena Rgnl Arp, Lewis and Clark, Montana

Event narrative

ASOS station KHLN Helena Airport measured a 62 mph wind gust.

Wider weather episode

An upper-level trough brought in enough moisture and instability to produce severe thunderstorms mainly across the North-Central Montana plains. Severe wind was the primary hazard with thunderstorms.

View location on OpenStreetMap → (46.6000, -111.9800)

Source: NOAA Storm Events Database, event_id 1258157. Narrative written by the NWS forecast office that issued the report.