Storm Record · Walworth County

July 24, 2012: Straight-line wind in Walworth County

64mph
Strongest gust
2
NWS reports

What the National Weather Service recorded

A strengthening low-level jet pushed over a stalled frontal boundary over southern Wisconsin with a very warm, moist and unstable air mass under very steep lapse rates provided the focus for strong to severe thunderstorms during the pre-dawn hours of July 24th. The severe thunderstorms produced a discontinous swath of damaging wind gusts that downed trees and power lines from near Darlington in Lafayette County, eastward across Green and Rock counties to Lake Geneva in Walworth County.

Source: NOAA Storm Events Database · episode 67479

Every report, in the Weather Service's words

Where It Hit

Location County Hazard Size Report
Sharon Walworth Wind 64 mph wind Law enforcement officials reported trees were blown down by severe thunderstorm wind gusts estimated at 56 knots (65 mph).
Lake Geneva (3 SW) Walworth Wind 64 mph wind Law enforcement officials reported scattered trees and a power pole were blown down by severe thunderstorm wind gusts estimated at 56 knots (65 mph) in a swath from 3 miles southwest of Lake Geneva to Lake Geneva.
Source: NOAA Storm Events Database, Wisconsin