A line of severe storms moved through western and central Wisconsin during evening of August 11th, resulting in coinciding corridors of severe reports. In western Wisconsin, volunteer observers reported toppled trees and power lines from severe wind gusts from Buffalo to Richland County. Highest wind gusts included an estimated 80 mph from a NWS storm survey of extensive damage in Westby (Vernon County) and a measured gust of 68 mph in the city of La Crosse (La Crosse County) by an automated weather observation station. In central Wisconsin, volunteer observers reported 60 mph wind gusts and quarter inch hail near Loyal (Clark County).

Thunderstorm Wind in BUFFALO, WISCONSIN
From 11-AUG-23 18:15:00 to 11-AUG-23 18:15:00 (CST-6)
Location: HEROLD
Magnitude: 43.00 EG
Property damage: 0.01K
Reported by: County Official

County Sheriff's Office reported a portable toilet was blown across the road near Alma.

Funnel Cloud in BUFFALO, WISCONSIN
From 11-AUG-23 18:26:00 to 11-AUG-23 18:26:00 (CST-6)
Location: WAUMANDEE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A volunteer observer reported a funnel cloud near Arcadia.

Thunderstorm Wind in TREMPEALEAU, WISCONSIN
From 11-AUG-23 18:40:00 to 11-AUG-23 18:40:00 (CST-6)
Location: TREMPEALEAU
Magnitude: 43.00 EG
Property damage: 1.00K
Reported by: Law Enforcement

Sherriff's Office reported fallen trees on County Road K near the Town of Trempealeau.

Thunderstorm Wind in LA CROSSE, WISCONSIN
From 11-AUG-23 18:56:00 to 11-AUG-23 18:56:00 (CST-6)
Location: ONALASKA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A volunteer observer reported 60 mph wind gusts near Onalaska.

Thunderstorm Wind in BUFFALO, WISCONSIN
From 11-AUG-23 19:05:00 to 11-AUG-23 19:05:00 (CST-6)
Location: GLENCOE
Magnitude: 43.00 EG
Property damage: 1.00K
Reported by: Public

A volunteer observer reported a power line down near Waumandee.

Thunderstorm Wind in VERNON, WISCONSIN
From 11-AUG-23 19:23:00 to 11-AUG-23 19:23:00 (CST-6)
Location: WESTBY
Magnitude: 70.00 EG
Property damage: 2.00K
Crop damage: 12.00K
Reported by: NWS Storm Survey

An NWS Storm Survey estimated 80 mph wind gusts near Westby with extensive damage that included many snapped maple trees.

Thunderstorm Wind in CLARK, WISCONSIN
From 11-AUG-23 17:47:00 to 11-AUG-23 17:47:00 (CST-6)
Location: LOYAL
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A volunteer observer estimated 70 mph wind gusts near Loyal.

Thunderstorm Wind in TREMPEALEAU, WISCONSIN
From 11-AUG-23 18:41:00 to 11-AUG-23 18:41:00 (CST-6)
Location: GALESVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A volunteer observer reported a large fallen tree near Galesville.

Thunderstorm Wind in JACKSON, WISCONSIN
From 11-AUG-23 18:18:00 to 11-AUG-23 18:18:00 (CST-6)
Location: SHEPPARD
Magnitude: 43.00 EG
Property damage: 0.10K
Reported by: County Official

Sherriff's Office reported fallen trees near Wazee Lake.

Thunderstorm Wind in LA CROSSE, WISCONSIN
From 11-AUG-23 19:01:00 to 11-AUG-23 19:01:00 (CST-6)
Location: LA CROSSE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 4.00K
Reported by: Public

Sherriff's Office reported multiple fallen trees within the city of La Crosse.

Thunderstorm Wind in LA CROSSE, WISCONSIN
From 11-AUG-23 19:01:00 to 11-AUG-23 19:01:00 (CST-6)
Location: (LSE)LA CROSSE MUNI
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The automated weather observation station at the La Crosse Regional Airport recorded a 68 mph thunderstorm wind gust.

Thunderstorm Wind in CLARK, WISCONSIN
From 11-AUG-23 17:33:00 to 11-AUG-23 17:33:00 (CST-6)
Location: LONGWOOD
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 60 mph wind gusts near Withee.

Hail in BUFFALO, WISCONSIN
From 11-AUG-23 17:47:00 to 11-AUG-23 17:47:00 (CST-6)
Location: NELSON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported nickel sized hail in Wabasha.

Hail in CLARK, WISCONSIN
From 11-AUG-23 17:53:00 to 11-AUG-23 17:53:00 (CST-6)
Location: LOYAL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A volunteer observer reported quarter sized hail near Loyal.

Thunderstorm Wind in VERNON, WISCONSIN
From 11-AUG-23 19:24:00 to 11-AUG-23 19:24:00 (CST-6)
Location: WESTBY
Magnitude: 56.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Volunteer observers reported multiple downed power lines with widespread power outages.

Thunderstorm Wind in RICHLAND, WISCONSIN
From 11-AUG-23 20:08:00 to 11-AUG-23 20:08:00 (CST-6)
Location: BUCK CREEK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 4.00K
Reported by: Law Enforcement

Sherriff's Office reported downed trees on various roads around Richland Center.