Storm Record · Jefferson, Walworth, Waukesha Counties

August 24, 2023: Straight-line wind in Jefferson, Walworth and Waukesha Counties

1″
Largest hail
58mph
Strongest gust
9
NWS reports

What the National Weather Service recorded

Scattered strong to severe thunderstorms occurred along a passing area of low pressure and its cold front over southeast Wisconsin. Large hail and wind damage to trees was observed.

Source: NOAA Storm Events Database · episode 184671

Every report, in the Weather Service's words

Where It Hit

Location County Hazard Size Report
Jefferson (.51 W) Jefferson Wind 58 mph wind Multiple trees down across Jefferson.
Ft Atkinson (1.71 SE) Jefferson Wind 58 mph wind Approximately a 2 foot diameter tree blown over.
Ft Atkinson (.51 E) Jefferson Wind 58 mph wind Multiple trees down across Fort Atkinson.
Whitewater (1.01 E) Walworth Wind 58 mph wind Approximately a 1 foot diameter branch fell onto a sidewalk.
Delavan Lake (3.69 NW) Walworth Wind 58 mph wind Multiple reports of tree damage northwest of Delavan. A shed was also damaged.
Darien (1.47 NNW) Walworth Wind 58 mph wind Some tree damage noted.
Ft Atkinson (.51 W) Jefferson Hail 1" hail
Ft Atkinson Muni Arp (3.42 SE) Jefferson Hail 1" hail
Calhoun (2.05 SE) Waukesha Hail 0.75" hail
Source: NOAA Storm Events Database, Wisconsin

Service areas this storm touched