FloodZoneMap.org

Flash Flood — Trempealeau, WI

Aug 8, 2009

Slow moving thunderstorms produced very heavy rainfall and flash flooding across portions of western Wisconsin late in the evening on August 7th through the early morning hours on August 8th. Cooperative observers reported rainfall amounts of 6.50 inches at Hixton and 6.55 inches at Black River Falls in Jackson County. Law enforcement officials reported mudslides, washed out and flooded roadways across northern Trempealeau and northern Jackson Counties.

Source: NOAA National Weather Service Storm Events Database (event 181403). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Trempealeau, WI

This event is one of many recorded floods in Trempealeau County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Trempealeau County flood data →

More Flood Stories

Flood$70K damage

Trempealeau, WI · Jul 1, 2024

Heavy rainfall throughout June led to many locations along the Mississippi River in Western Wisconsin to enter flood stage which persisted into July.

Read the full account →
Flash Flood$2.6M damage

Trempealeau, 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.

Read the full account →
Flood$1.6M damage

Trempealeau, 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.

Read the full account →
Flood$15K damage

Trempealeau, WI · Oct 25, 2023

A series of strong to severe storms traversed western into central Wisconsin from the morning hours of October 24th into October 25th, producing heavy rain and mostly small hail.

Read the full account →