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Wisconsin Flood Stories

1,435 first-hand accounts of flood events in Wisconsin, ranked by impact. Each is a NOAA-written narrative of the moment.

Flood$527K damage

Buffalo, WI · Jul 20, 2017

After a round of severe thunderstorms moved across western Wisconsin, a second round of thunderstorms developed over much of the same area during the late evening of July 19th into the early morning of the 20th.

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Flash Flood$500K damage

Portage, WI · Jun 12, 2017

A stalled front across central and east central Wisconsin was the focus for severe thunderstorms. Storms developed in southern Minnesota and a bow echo formed that made its way across Wisconsin south of Highway 29.

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Flash Flood$500K damage

Buffalo, WI · Jul 19, 2017

After a round of severe thunderstorms moved across western Wisconsin, a second round of thunderstorms developed over much of the same area during the late evening of July 19th into the early morning of the 20th.

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Flash Flood$230K damage

Juneau, WI · Sep 3, 2018

Thunderstorms with heavy rain moved across western Wisconsin during the evening of September 3rd. Rainfall amounts of 2 to 5 inches produced some flash flooding across portions of Monroe, Vernon, Crawford and Richland Counties.

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Flood$489K damage

Vernon, WI · Jul 20, 2017

After a round of severe thunderstorms moved across western Wisconsin, a second round of thunderstorms developed over much of the same area during the late evening of July 19th into the early morning of the 20th.

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Flood$105K damage

Portage, WI · Mar 15, 2019

Several locations across northeast Wisconsin had snow depths around a foot or more above normal for late February and early March. Temperatures across central and northern Wisconsin warmed above freezing during the daytime hours starting around March 8th.

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Flash Flood$102.2M damage

Jefferson, WI · Jun 8, 2008

A slow-moving surface boundary, nearly parallel with the mid-level flow affected southern Wisconsin during the period of June 7th through June 9th.

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Flash Flood$1.0M damage

Trempealeau, WI · Aug 11, 2016

Repeated rounds of thunderstorms with heavy rain moved across western Wisconsin on August 11th. This heavy rain produced flash flooding in parts of Buffalo and Trempealeau Counties. In Buffalo County, Mondovi, Gilmanton and Cream were hit hard by the flash flooding.

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Flash Flood$100K damage

Chippewa, WI · Apr 18, 2019

The combination of recent heavy rainfall, snow melt and very moist ground, led to a partial dam failure on Thursday, April 18th. ||The local Chippewa County Emergency Manager indicated that there was a partial failure of the Tilden Mill Dam, on Duncan Creek north of Chippewa…

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Flood$10K damage

Columbia, WI · Mar 5, 2022

A cluster/line of thunderstorms moved across southern Wisconsin the evening of March 5th. Within this line of storms, some briefly intense downburst winds occurred across portions of south central to east central Wisconsin.

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Flood$21.0M damage

Douglas, WI · Jun 20, 2012

A stationary front over central Wisconsin early June 19th moved north into the coastal counties of northwest Wisconsin late in the day, on the 19th. Air to the south of the front was remarkably warm and humid.

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Flood$438K damage

Crawford, WI · Jul 20, 2017

After a round of severe thunderstorms moved across western Wisconsin, a second round of thunderstorms developed over much of the same area during the late evening of July 19th into the early morning of the 20th.

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Flood$200K damage

Manitowoc, WI · May 3, 2018

Multiple rainfall events during the early days of May caused flooding in Calumet County and Manitowoc County. Water began to over-top Shoto Dam on the West Twin River in Manitowoc County and there was some concern that the dam could fail.

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Flood

Green, WI · Jun 22, 2024

Severe thunderstorms developed across western Wisconsin and moved eastward across southern Wisconsin through the afternoon and evening hours on June 22nd due to passing low pressure and its approaching cold front.

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Flash Flood$913K damage

La Crosse, WI · Sep 21, 2016

One person was killed near Victory (Vernon County) when a house was swept down a hillside by a mudslide during the early morning hours of the 22nd.

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Flash Flood$882K damage

Chippewa, WI · Sep 21, 2016

On the evening of September 20th, a warm front was stretched west to east across southern Minnesota, and southern Wisconsin. The weather pattern, and associated boundaries were nearly stationary through early Thursday morning, September 22nd.

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Flood$88K damage

Waupaca, WI · Mar 15, 2019

Several locations across northeast Wisconsin had snow depths around a foot or more above normal for late February and early March. Temperatures across central and northern Wisconsin warmed above freezing during the daytime hours starting around March 8th.

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Flash Flood$30K damage

Burnett, WI · Aug 26, 2024

Storms developed across Minnesota during the afternoon hours of the 26th across Minnesota and moved into northwest Wisconsin during the evening hours. These storms were mainly wind producing storms with numerous reports of downed trees and power lines across the region.

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Flood$825K damage

Jackson, WI · Sep 22, 2016

One person was killed near Victory (Vernon County) when a house was swept down a hillside by a mudslide during the early morning hours of the 22nd.

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Flash Flood$500K damage

Brown, WI · Sep 17, 2018

Thunderstorms arrived with a cold front that passed across most of the area but then stalled over central Wisconsin. The storms produced wind damage and brought torrential rainfall to parts of central and east-central Wisconsin.

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Flood$854K damage

Ozaukee, WI · Aug 27, 2018

Multiple rounds of strong to severe thunderstorms moved across southern WI as a warm front slowly moved north through the region. Flash flooding occurred in Washington, Ozaukee, and northern Milwaukee Counties which was followed by prolonged river flooding.

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Flash Flood$78.7M damage

Milwaukee, WI · Jun 21, 1997

Severe flash flooding occurred in Milwaukee county as a result of heavy rainfall amounts of up to nearly 10 inches over a 30 hour period ending about 1200CST. This flash flooding was greater than a "100 year rainfall" based on rainfall frequency maps.

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Flash Flood$78.0M damage

Milwaukee, WI · Jun 8, 2008

A slow-moving surface boundary, nearly parallel with the mid-level flow affected southern Wisconsin during the period of June 7th through June 9th.

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Flash Flood$943K damage

Jefferson, WI · Aug 17, 2018

A slow moving low pressure area within a very moist airmass resulted in rounds of heavy rainfall and flash flooding. More specifically, a prolonged period of heavy rainfall over northern Jefferson County, far southern Dodge County, and northeast Dane County resulted in 4 to 8…

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