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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.

Flood3 deaths$20K damage

Clark, WI · Jun 20, 2012

Three people were killed in two separate accidents when they unknowingly drove their vehicles into a 12 to 15 foot deep washout area. The washout occurred southwest of Willard (Clark County) on County Highway M where it crossed Scott Creek.

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Flood3 deaths

Milwaukee, WI · Jun 13, 2022

A supercell thunderstorm formed north of a warm front and tracked east across much of southern WI. A swath of destructive hail and sporadic wind damage occurred. More specifically, vehicle, shingle, siding, gutter, and window screen damage.

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Flash Flood2 deaths$17.3M damage

Waukesha, WI · Aug 6, 1998

A monumental flash flood event ravaged adjacent portions of Milwaukee and Waukesha counties during the afternoon and evening hours. For the northwest quarter of Milwaukee Co., and the northeast/ eastcentral parts of Waukesha Co., it was the second year in row (press headline -…

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Flood1 death$1.0M damage

Washington, WI · Aug 10, 2025

A historic flash flood and record rainfall occurred over portions of the Milwaukee Metropolitan Area and Southeast WI resulting in damages in the $100s Millions.

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Flash Flood1 death$60.0M damage

Milwaukee, WI · Aug 9, 2025

A historic flash flood and record rainfall occurred over portions of the Milwaukee Metropolitan Area and Southeast WI resulting in damages in the $100s Millions.

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Flash Flood1 death$8.0M damage

St. Croix, WI · Jun 29, 2020

During the evening of Sunday, June 28th, a complex of thunderstorms that developed across Iowa previously, moved slowly northward across southern Minnesota and western Wisconsin before stalling Monday morning.

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Flash Flood1 death$8.9M damage

Vernon, 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 Flood1 death$1.0M damage

Dane, WI · Aug 20, 2018

An organized and slow moving low pressure area within a very moist airmass resulted in 9 to 15 inches of rain and historic flash flooding from the west side of Madison to Mazomanie, and south to Belleville.

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Flood1 death$986K damage

Vernon, 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 Flood1 death$24.1M damage

Milwaukee, WI · Jul 22, 2010

Parts of south-central and southeast Wisconsin experienced several rounds of record-setting torrential heavy rains during the afternoon and evening hours of July 22, 2010 that led to flash flooding and damage.

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Flood1 death$30K damage

Ozaukee, WI · May 17, 2020

A slow moving low pressure area brought a 18-24 hour period of moderate to sometimes heavy rainfall. 3 to 6 inches of rain fell over far eastern WI, which resulted in river, creek, and lowland flooding. Numerous roads were flooded and closed.

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Flash Flood1 death$8.8M damage

Richland, WI · Aug 18, 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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Flood1 death

Bayfield, WI · Jul 12, 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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Flash Flood1 death$25K damage

Waukesha, WI · Jun 12, 2008

A series of clusters of strong to severe storms ahead of a cold front moved east/northeast across south-central and sourtheast Wisconsin. Copious amounts of moisture were available that allowed repeated heavy rains.

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Flood1 death

Racine, WI · Sep 26, 2011

Showers and thunderstorms associated with a cut-off upper low that stalled over northern Illinois and southern Wisconsin produced up to 3 inches of rain across parts of southern Wisconsin over a 48-hour period ending the morning of September 26th...with between 1.5 and 2 inches…

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Flash Flood1 death$15K damage

Vernon, WI · May 8, 2004

Flash flooding occurred when 3 to 5 inches of rain fell in less than two hours. Mudslides and rock slides were reported by law enforcement officials along Highway 35 near De Soto, Lynxville and Ferryville (Crawford County).

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Flood1 death

Menominee (c), WI · Jul 20, 2019

For the second consecutive day, a line of powerful thunderstorms moved across portions of central and east-central Wisconsin. The worst damage occurred from Wood/Portage counties eastward into the Fox Valley and lakeshore.

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Flash Flood1 death

Ashland, WI · Jun 17, 2018

Multiple rounds of thunderstorms along a stationary boundary starting Friday, June 15th, and persisting through the day June 16th, acted to saturate soils across northwest Wisconsin. Another round of training storms developed the night of the 16th, fed by a moist low-level jet.

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Flash Flood1 death

Iron, 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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Flood1 death

Ashland, WI · Jul 14, 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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Flash Flood$400K damage

Jackson, WI · Sep 6, 2015

During the evening of September 6th, thunderstorms developed north of a nearly stationary front across the west central portions of Wisconsin. The first round of thunderstorms produced some locally heavy rains and damaging winds.

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Flash Flood$350K damage

Walworth, WI · Jun 13, 2000

Flash flooding and scattered severe thunderstorms struck parts of south-central and southeast Wisconsin during the afternoon and evening hours. Several clusters of showers and thunderstorms moved east/northeast at 35 to 40 mph across the area.

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Flash Flood$89.0M damage

Waukesha, WI · Aug 9, 2025

A historic flash flood and record rainfall occurred over portions of the Milwaukee Metropolitan Area and Southeast WI resulting in damages in the $100s Millions.

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Flash Flood$9.0M damage

Waukesha, WI · Aug 9, 2025

A historic flash flood and record rainfall occurred over portions of the Milwaukee Metropolitan Area and Southeast WI resulting in damages in the $100s Millions.

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