Thunderstorm Wind — Big Horn, Montana

2021-08-16 · near Crow Agency, Big Horn, Montana

Event narrative

A strong thunderstorm outflow passed over Crow Agency around 630pm with winds to 55 mph. A couple hours later, a shower with up to 20dbz moved over Crow Agency around 830pm, producing winds to 64 mph across a small area. A roof blew off an arbor, throwing it across the street, striking a camper in the head and throat.

Wider weather episode

A weak disturbance that moved over the Billings Forecast area resulted in the development of a few thunderstorms that produced some severe wind gusts.

View location on OpenStreetMap → (45.6040, -107.4650)

Source: NOAA Storm Events Database, event_id 978906. Narrative written by the NWS forecast office that issued the report.