Thunderstorm Wind — Ravalli, Montana

2015-08-10 · near Conner, Ravalli, Montana

Event narrative

Trained spotter estimated 59 mph wind gust. A person from the public on Facebook estimated wind gusts were over 65 mph in Darby.

Wider weather episode

A cluster of thunderstorms developed at 3 pm MDT over Lemhi county and was associated with very frequent lightning strikes. This cluster of thunderstorms developed into a line and brought strong damaging winds to the Bitterroot and Missoula valleys. Numerous power lines were knocked down as a line of 60 mph winds push through the Bitterroot valley. As the thunderstorms approached Missoula, a macroburst developed and brought 74 mph wind gusts to the city of Missoula. Many power lines and trees were brought down and caused power outages for days in some areas.

View location on OpenStreetMap → (45.8584, -114.2329)

Source: NOAA Storm Events Database, event_id 596006. Narrative written by the NWS forecast office that issued the report.