Thunderstorm Wind in Silver Bow County, Montana

Thunderstorm Wind August 6, 2009 · Silver Bow County, Montana

69 mph

Measured gust (60 kt)

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

What the National Weather Service wrote

The Elk Park Department of Transportation weather station measured a thunderstorm wind gust up to 69 mph.

The wider storm

A strong low pressure system and associated cold front moved into the Northern Rockies, creating a favorable environment for strong hail producing thunderstorms and heavy rain. Flash flooding was reported in the city of Butte with this event as up to an inch of precipitation occurred in 30 to 45 minutes. Hail up to the size of baseballs and strong winds nearing 70 mph were also observed.

Began near East Butte (46.0300, -112.4900).

Source: NOAA Storm Events Database, event 192657. Narratives are written by the National Weather Service forecast office that issued the report.

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