Thunderstorm Wind — Knox, Ohio

2021-08-11 · near Fredericktown, Knox, Ohio

Event narrative

Numerous trees and power lines downed in Fredericktown.

Wider weather episode

Northern Ohio was within the warm sector during the morning of the 11th through early evening of the 13th as the region remained along the northwestern flank of the Bermuda-Azores subtropical high pressure ridge. Simultaneously, a very slow-moving cold front approached northern Ohio from the Upper Midwest as multiple surface lows moved northeastward along the front. Ahead of the front, six distinct rounds of severe thunderstorms with damaging wind gusts affected northern Ohio between the early morning of the 11th and early evening of the 13th. These storms utilized moderate to strong MUCAPE, moderate to strong DCAPE, and primarily moderate to strong effective bulk shear.

View location on OpenStreetMap → (40.4807, -82.5439)

Source: NOAA Storm Events Database, event_id 978163. Narrative written by the NWS forecast office that issued the report.