A strong squall line with torrential rainfall moved east along and north of warm front over southern WI. A quick 2.5-4.5 inches of rain resulted in the flash flooding of creeks, small rivers, and urban and rural roadways. Some trees were downed by straight-line winds. A 42 unit apartment building burned down in Waukesha after being struck by lightning.

Thunderstorm Wind in LAFAYETTE, WISCONSIN
From 12-SEP-19 19:05:00 to 12-SEP-19 19:11:00 (CST-6)
Location: DARLINGTON
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Public

Several trees and large branches down.

Thunderstorm Wind in DANE, WISCONSIN
From 12-SEP-19 20:05:00 to 12-SEP-19 20:11:00 (CST-6)
Location: MT HOREB
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Law Enforcement

Several trees down.

Lightning in WAUKESHA, WISCONSIN
From 12-SEP-19 22:00:00 to 13-SEP-19 04:00:00 (CST-6)
Location: DOWNTOWN WAUKESHA
Property damage: 2.50M
Crop damage: 0.00K
Reported by: Broadcast Media

Approximately 100 people were displaced when an apartment building was struck by lightning causing a fire. The 42 unit apartment building was a total loss. One resident was rescued from the third floor and one fireman was injured. Two residents were also injured.

Flash Flood in SAUK, WISCONSIN
From 12-SEP-19 19:30:00 to 12-SEP-19 22:15:00 (CST-6)
Location: LONE ROCK AIRPORT
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Multiple road closures due to flash flooding in Plain, Prairie du Sac, Sauk City, and other locations over southern Sauk County after a quick few inches of rain.

Flash Flood in IOWA, WISCONSIN
From 12-SEP-19 19:34:00 to 12-SEP-19 22:15:00 (CST-6)
Location: REWEY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash flooding of some streets in Dodgeville and Mineral Point and numerous roads flooded throughout the county. Mud and rocks on a portion of highway 130/133 in the far northern portion of the county.

Flash Flood in LAFAYETTE, WISCONSIN
From 12-SEP-19 19:45:00 to 12-SEP-19 22:15:00 (CST-6)
Location: BENTON
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding of roads in Darlington and other townships throughout the county. Numerous road closures were needed due to the high water.

Flash Flood in ROCK, WISCONSIN
From 12-SEP-19 22:15:00 to 13-SEP-19 02:00:00 (CST-6)
Location: MILTON
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Flash flooding and closures of numerous streets in Janesville. This includes the intersection of Lexington Dr. and Mount Zion Ave. and County Highway D south of Janesville.

Flash Flood in WALWORTH, WISCONSIN
From 12-SEP-19 23:45:00 to 13-SEP-19 02:00:00 (CST-6)
Location: SHARON
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding and closures of multiple roads across the southern portion of the county. Flash flooding of the White River led to flooded yards and a trailer being swept away.

Flash Flood in WAUKESHA, WISCONSIN
From 12-SEP-19 23:45:00 to 13-SEP-19 02:00:00 (CST-6)
Location: DURHAM
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding and closures of multiple roads from New Berlin to Muskego.

Flash Flood in MILWAUKEE, WISCONSIN
From 12-SEP-19 00:20:00 to 12-SEP-19 03:00:00 (CST-6)
Location: FRANKLIN
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The Root River Parkway and nearby roads and intersections were closed due to the flash flooding of the Root River. A vehicle became disabled in the floodwaters. In addition to street flooding, yards, basements, and garages flooded especially in Franklin. Multiple reports of standing water on the freeway system and side streets throughout much of the county.

Flash Flood in KENOSHA, WISCONSIN
From 13-SEP-19 00:20:00 to 13-SEP-19 02:30:00 (CST-6)
Location: DOWNTOWN KENOSHA
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Flash flooding of some streets in Kenosha including water in the basement of the public safety building.

Flood in KENOSHA, WISCONSIN
From 13-SEP-19 02:30:00 to 13-SEP-19 08:30:00 (CST-6)
Location: CAROL BEACH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Various roads remained flooded and closed across the county. This included a portion of County Road H in the eastern part of the county and 236th Ave. in Paddock Lake. Rising waters on Lily Lake resulted in waterfront properties surrounded by high water.

Flood in WALWORTH, WISCONSIN
From 13-SEP-19 02:00:00 to 13-SEP-19 08:00:00 (CST-6)
Location: GENOA CITY
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Rising waters on Delavan Lake resulted in pier planks and boats breaking free. Rising waters on Geneva Lake caused water to flow over the dam, thereby flooding the White River and a nearby park and nature preserve in Lake Geneva. Some streets were closed near the White River. Other roads over southern Walworth County remained flooded and closed.

Flood in KENOSHA, WISCONSIN
From 13-SEP-19 10:42:00 to 20-SEP-19 05:45:00 (CST-6)
Location: FOX RIVER
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Fox River at New Munster reached moderate flood stage, cresting at 13.15 feet the evening of September 14th. Water is up to the first floor levels of some homes in the Town of Wheatland and Village of Salem Lakes along Riverside Drive and Shorewood Drive. There is flooding on 77th St. Floodwaters surround a home near the intersection of highway 50 and W.

Flood in MILWAUKEE, WISCONSIN
From 13-SEP-19 08:00:00 to 14-SEP-19 13:00:00 (CST-6)
Location: FRANKLIN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Root River at Franklin reached minor flood stage, cresting at 9.08 feet the evening of September 13th.  A portion of Oakwood Road in southern Milwaukee County is flooded and closed. There is flooding to agricultural land.

Flood in ROCK, WISCONSIN
From 12-SEP-19 19:39:00 to 14-SEP-19 20:48:00 (CST-6)
Location: BELOIT
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Turtle Creek at Beloit reached minor flood stage, cresting at 9.72 feet the morning of September 14th. Floodwaters surround a power substation on Colley Road. Colley Road is closed between Sager Lane and Brewster Ave. Floodwaters are also in the backyards of some homes on Arrowhead Drive, East Ridge Road, Mocassin Drive, Boulder Lane, Rockfence Lane and Stonehedge Lane. Parts of Bootmaker Drive and Moccasin Trail are flooded.

Flood in LAFAYETTE, WISCONSIN
From 14-SEP-19 01:51:00 to 15-SEP-19 04:39:00 (CST-6)
Location: DARLINGTON
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Pecatonica River at Darlington reached minor flood stage, cresting at 14.31 feet during the early afternoon of September 14th. Floodwaters cover a portion of Main Street in Darlington. A part of the Lafayette County Fairgrounds is flooded as well as agricultural land in the area.

Flood in GREEN, WISCONSIN
From 15-SEP-19 03:00:00 to 30-SEP-19 23:59:00 (CST-6)
Location: MARTINTOWN
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Pecatonica River at Martintown reached minor flood stage, cresting at 15.38 feet the  morning of September 18th. Floodwaters affect Martintown Road and West River Road in the Martintown area. Upstream in Browntown, floodwaters affect highway MM and West Indies Road. The river continued to flood into October.