Thunderstorm Wind in Park County, Montana

Thunderstorm Wind July 7, 2021 · Park County, Montana

61 mph

Measured gust (53 kt)

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

The wider storm

Warm and moist surface conditions with temperature/dewpoints in the 80s/50s F respectively contributed to between 500 and 1000 J/kg of MLCAPE across much of south-central and southeast Montana. In addition, increased forcing for ascent from an upper level disturbance approaching from Idaho, along with effective shear of 40-50kts, resulted in the development of severe thunderstorms. This, combined with steep, low and

mid-level lapse rates, helped produce damaging wind gusts and severe hail.

Began near Wilsall Arpt (46.1600, -110.3800).

Source: NOAA Storm Events Database, event 965467. Narratives are written by the National Weather Service forecast office that issued the report.

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