Thunderstorm Wind in Hill County, Montana
Thunderstorm Wind August 22, 2023 · Hill County, Montana
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
A 40 x 60 metal shed destroyed from collapsing thunderstorm wind gusts. Nearby observations recorded wind gusts in excess of 70 mph.
The wider storm
Two episodes of severe weather were observed over this period. The first, on August 18, was related to a ridge breakdown by a strong shortwave. Dry low and mid levels resulted in deep inverted-V profiles, which were conducive to strong wind gusts.
The second episode of severe caliber gusts occurred on August 22nd. Moist southwesterly flow aloft, along with embedded shortwaves resulted in the developments of showers and thunderstorms across Central and Southwest Montana August 22nd. The area just experienced the remnants of Hurricane Hilary, which resulted in relatively moist lower levels, which in turn helped produce ample instability for severe thunderstorms.
Began near Hingham (48.5411, -110.4200).
Source: NOAA Storm Events Database, event 1133998. Narratives are written by the National Weather Service forecast office that issued the report.
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