Thunderstorms developed ahead of a cold front during the afternoon across northeast Wisconsin.  The strongest storms produced wind damage, large hail and 2 tornadoes. Rainfall amounts of 2 to 4 inches fell across central and southern Marathon County, producing flash flooding across these areas.

Flash Flood in MARATHON, WISCONSIN
From 11-AUG-21 13:00:00 to 11-AUG-21 17:30:00 (CST-6)
Location: WIEN
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorms dumped 2 to 4 inches of rain over central and southern Marathon County during the afternoon hours. This caused several roads to be closed due to flash flooding.

Thunderstorm Wind in PORTAGE, WISCONSIN
From 11-AUG-21 13:34:00 to 11-AUG-21 13:35:00 (CST-6)
Location: JUNCTION CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Thunderstorm winds damaged trees and a garage door on the north side of Junction City. The time of this event is an estimate based on radar data.

Thunderstorm Wind in DOOR, WISCONSIN
From 11-AUG-21 13:55:00 to 11-AUG-21 13:56:00 (CST-6)
Location: BRUSSELS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed trees in the town of Gardner. The time of this event is an estimate based on radar data.

Thunderstorm Wind in DOOR, WISCONSIN
From 11-AUG-21 13:57:00 to 11-AUG-21 13:58:00 (CST-6)
Location: FAIRLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorm winds downed trees in Union. The time of this event is an estimate based on radar data.

Thunderstorm Wind in BROWN, WISCONSIN
From 11-AUG-21 14:41:00 to 11-AUG-21 14:42:00 (CST-6)
Location: CORMIER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm winds downed trees, power poles, and power lines in the Howard-Suamico area. The time of this event is an estimate based on radar data.

Thunderstorm Wind in KEWAUNEE, WISCONSIN
From 11-AUG-21 15:09:00 to 11-AUG-21 15:12:00 (CST-6)
Location: ALGOMA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed trees in Algoma. The time of this event is an estimate based on radar data.

Thunderstorm Wind in LANGLADE, WISCONSIN
From 11-AUG-21 12:40:00 to 11-AUG-21 12:41:00 (CST-6)
Location: ANTIGO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds downed trees in Antigo. The time of this event is an estimate based on radar data.

Tornado in BROWN, WISCONSIN
From 11-AUG-21 13:14:00 to 11-AUG-21 13:22:00 (CST-6)
Location: PULASKI
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down at 2:14 pm CDT just northwest of Pulaski, moved east across the north side of the city, then dissipated about 1 mile east of Pulaski at 2:22 pm CDT. The tornado produced damage to trees (DI 28, DOD 2,4). Total path length is estimated to be 2.27 miles long, with a width of 75 yards. Peak wind estimated to be around 70 mph.

Tornado in SHAWANO, WISCONSIN
From 11-AUG-21 13:08:00 to 11-AUG-21 13:09:00 (CST-6)
Location: ANGELICA
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A brief tornado formed at 2:08 pm CDT south of Angelica in Shawano County and uprooted a couple of trees (DI 28, DOD 3) and produced damage to an outbuilding (DI 1, DOD 2,3) before moving east and dissipating in a nearby field at 2:09 pm CDT. Total path length is estimated to be 0.37 miles long, with a width of 41 yards. Peak wind estimated to be around 68 mph.

Hail in WAUPACA, WISCONSIN
From 11-AUG-21 14:10:00 to 11-AUG-21 14:11:00 (CST-6)
Location: CLINTONVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail fell in Clintonville.

Thunderstorm Wind in LINCOLN, WISCONSIN
From 11-AUG-21 11:35:00 to 11-AUG-21 11:36:00 (CST-6)
Location: IRMA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed trees and power lines in Irma. The time of this event is an estimate based on radar data.

Thunderstorm Wind in PORTAGE, WISCONSIN
From 11-AUG-21 12:56:00 to 11-AUG-21 12:57:00 (CST-6)
Location: PLOVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds downed trees south of the Stevens Point and Plover area. The time of this event is an estimate based on radar data.