FloodZoneMap.org

Flood — Grant, WI

May 1, 2001

The Mississippi River crested in April 2001 at levels second only to the all-time flood of record, which occurred in April 1965. Even though water levels were receding, the river remained above flood stage, which continued flooding until the middle of May. High water levels caused damage to homes and businesses, especially in the Prairie du Chien area (Crawford County) and points southward. Due to the extensive damage caused by flood waters, Buffalo, Trempealeau, La Crosse, Vernon, Crawford a

Source: NOAA National Weather Service Storm Events Database (event 5243079). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Grant, WI

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

View Grant County flood data →

More Flood Stories

Flash Flood$300K damage

Grant, WI · Aug 10, 2025

Two separate rounds of storms moved through Grant County on August 10th bringing both heavy rain and flash flooding along with them. The first round of storms moved through during the early morning hours bringing widespread flooding issues to northern portions of the county.

Read the full account →
Flash Flood$75K damage

Grant, WI · Aug 17, 2025

Rounds of strong to severe storms throughout the day on August 16th resulted in instances of large hail, damaging winds and flash flooding in western Wisconsin. Hail with these storms reached up to golf ball sized near New Lisbon along with instances of tree damage.

Read the full account →
Flash Flood$25K damage

Grant, WI · Aug 10, 2025

Two separate rounds of storms moved through Grant County on August 10th bringing both heavy rain and flash flooding along with them. The first round of storms moved through during the early morning hours bringing widespread flooding issues to northern portions of the county.

Read the full account →
Flash Flood$900K damage

Grant, WI · Sep 12, 2019

A couple rounds of thunderstorms moved across southwest Wisconsin during the afternoon and evening of September 12th. These storms dropped 3 to 4 inches of rain on the region and with already saturated soils, flash flooding occurred across parts of Grant and Crawford Counties.

Read the full account →