Thunderstorm Wind in Brooke County, West Virginia

Thunderstorm Wind June 30, 2021 · Brooke County, West Virginia

69 mph

Estimated gust (60 kt)

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

What the National Weather Service wrote

An emergency manager reported than an old building blew down from straight line winds in Brooke Hills Park.

The wider storm

A passing upper level trough with strong mid-level flow and diurnal heating under a moist low-level airmass helped generate severe storms across the Ohio River Valley. Effective bulk shear was 30-40kts and supported storm organization. ML CAPE ranged from 1000-2000J/kg by mid-afternoon, steep lapse rates helped efficient downdraft acceleration.

Training storms also created localized flooding along a convergence axis from southeast Ohio to southwest PA.

Began near Fowlerstown (40.2700, -80.5400).

Source: NOAA Storm Events Database, event 987657. Narratives are written by the National Weather Service forecast office that issued the report.

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