Flash Flood in Missoula County, Montana

Flash Flood August 2, 2021 · Missoula County, Montana

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

A trained spotter reported 1.3 inches of rainfall during a 45 minute period in Big Sky Lake. Excessive runoff washed out a resident's driveway along Big Sky Lake.

The wider storm

A strong thunderstorm produced excessive rainfall over Big Sky Lake during the afternoon of August 2nd.

Began near Seeley Lake Arpt (47.1498, -113.4530).

Source: NOAA Storm Events Database, event 976613. Narratives are written by the National Weather Service forecast office that issued the report.

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