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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

Sauk, WI · Sep 23, 2016

Repeated rounds of strong thunderstorms with heavy rainfall produced several inches of rain in the Baraboo River Basin and surrounding areas on September 21-22. Moderate flooding occurred along the Baraboo River from La Valle to Reedsburg to Rock Springs.

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Flood$100K damage

Kenosha, WI · Jun 18, 1996

Periods of heavy rains from the 16th into the early morning hours of the 18th (totaling 1 to 3 inches) on top of saturated ground, resulted in a slow rise of water levels on the Pike river in northeast Kenosha county.

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Flood

Fond Du Lac, WI · Jul 16, 2025

Two lines of severe thunderstorms tracked across southern Wisconsin from early afternoon through the early evening hours. Numerous supercell thunderstorms developed, producing a number of wall and funnel clouds as well as a few tornadoes.

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Flash Flood$250K damage

Vernon, WI · May 21, 2004

2 to 4 inches of rain in two hours caused flash flooding. Law enforcement officials and emergency managers reported several roads were either washed out or covered with water as much as 3 to 4 feet deep.

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Flash Flood$200K damage

Ozaukee, WI · Jun 18, 1996

Thunderstorms with heavy rains "trained" N/NW over the I-95 interchange west of Port Washington repeatedly to produce flash flooding. Water was reported to be 4 feet deep at the interchange, forcing a road closure until 1400CST. Shoulder washouts were noted.

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Flash Flood

Bayfield, WI · Jul 11, 2016

Thunderstorms brought heavy rain to northwest Wisconsin early Monday, July 11th which helped to saturate the soil. During the day a strong low level jet pumped very moist air into the region.

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Flood

Lincoln, WI · Jun 11, 2017

More thunderstorms developed later on the afternoon of June 11th in the vicinity of a surface frontal boundary. The storms downed trees and power lines across parts of northern Wisconsin and produced torrential rainfall that caused street flooding in Lac du Flambeau (Vilas Co.),…

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Flood

Langlade, WI · Jun 11, 2017

More thunderstorms developed later on the afternoon of June 11th in the vicinity of a surface frontal boundary. The storms downed trees and power lines across parts of northern Wisconsin and produced torrential rainfall that caused street flooding in Lac du Flambeau (Vilas Co.),…

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Flood

Columbia, WI · Dec 5, 2014

An ice jam caused the Wisconsin River at Portage to rise above flood stage at 17.08 feet for a brief period. This caused flooding of the lower roads in the Blackhawk Park area, which is between the Wisconsin River and Long Lake.

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Flash Flood$30K damage

Walworth, WI · Aug 5, 1998

A series of thunderstorms, slowly moving northeast at 10 mph, trained through the area southeast of Whitewater to northwest of Elkhorn, dumping an additional 1 to 3 inches of rain on top of an earlier 3 to 5 inches.

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Flash Flood$30K damage

Dodge, WI · Jul 21, 1999

A series of thunderstorms feeding off of a humid tropical-like airmass repeatedly trained across portions of southcentral and southeast Wisconsin during the late evening of the 20th into the early morning hours of the 21st. The net result was widespread flash flooding.

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Flash Flood$30K damage

Washington, WI · Jul 20, 1999

A series of thunderstorms feeding off of a humid tropical-like airmass repeatedly trained across portions of southcentral and southeast Wisconsin during the late evening of the 20th into the early morning hours of the 21st. The net result was widespread flash flooding.

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Flash Flood$30K damage

Jefferson, WI · May 17, 1999

Late afternoon thunderstorms rumbled across southern Wisconsin producing classic severe weather damage in many locations. There were numerous reports of wind damage to trees and power lines, large hail, and lightning.

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Flash Flood$30K damage

Sheboygan, WI · Aug 22, 2000

A mesoscale convective system (MCS) moved east across southern Wisconsin and generated scattered severe downburst winds, flood-producing rains, and intense lightning strikes.

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Flash Flood$30K damage

Jefferson, WI · Aug 3, 2004

Clusters of severe thunderstorms moved southeast through south-central and southeast Wisconsin, resulting in damaging straight line winds that toppled large trees, very large damaging hail, and heavy rains that led to flash flooding.

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Flash Flood$30K damage

Milwaukee, WI · Jul 9, 2006

A complicated weather scenario developed during the late afternoon and early evening of July 9th. A cold front pushing east into southwestern Wisconsin produced slow moving scattered thunderstorms across south-central Wisconsin as a lake breeze pushed west into the counties of…

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Flash Flood$30K damage

La Crosse, WI · Aug 19, 2007

A warm front lifting northward into Iowa triggered round after round of thunderstorms leading to excessive rainfall across southwest Wisconsin during the evening and overnight hours of August 18-19. Total rainfall amounts of 10 to 15 inches were common.

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Flash Flood$30K damage

Rock, WI · Aug 9, 2009

Three rounds of thunderstorms produced wind damage and flash flooding during the afternoon, evening, and overnight hours of August 9th. The thunderstorms developed as a cold front trailing from low pressure over northeast Wisconsin moved into a hot, humid and unstable air mass…

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Flash Flood$30K damage

Sauk, WI · Jul 14, 2010

A continuous feed of moisture, in a low to mid-level warm air advection regime, impinged along an outflow boundary draped across southern Wisconsin.

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Flash Flood$30K damage

Trempealeau, WI · Aug 13, 2010

A line of severe thunderstorms moved out of Minnesota and into western and central Wisconsin during the morning hours of August 13th. Strong winds created tree and minor structural damage, while widespread heavy rain of 3 to 4 inches caused some flash flooding, road closures,…

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Flash Flood

Sauk, WI · Jun 22, 2013

A complex of severe thunderstorms produced a tornado in Columbia County, as well damaging winds over South Central Wisconsin during the evening hours of June 22nd.

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Flood$30K damage

Dane, WI · Jun 12, 2000

Several rounds of thunderstorms moved west to east across the same locations and dumped enough rain to cause flash flooding in the city of Kenosha (Kenosha County).

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Flood$30K damage

Dane, WI · May 18, 2000

Leftover thunderstorms from the evening of May 17th eventually moved through Kenosha County during the pre-dawn hours on the 18th, and left in their wake flash flooding conditions around Somers.

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Flood

Green, WI · Apr 19, 2013

Repeated rounds of showers and some thunderstorms during the second half of April brought rain totals for the entire month to between 5 and 8 inches, or between 150 percent and 200 percent of normal across southern Wisconsin.

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