EF3 Tornado — Grant, Wisconsin

2021-08-07 · near Boscobel, Grant, Wisconsin

Event narrative

A NWS storm survey confirmed that an EF3 tornado occurred across northern Grant County. The tornado started in Boscobel where damage to trees, power poles and power lines occurred. The tornado then moved east/southeast before dissipating south of Blue River. Along the path, six homes sustained enough damage to be considered total losses while numerous other had minor to moderate damage. No injuries were reported.

Wider weather episode

Several rounds of storms moved across western Wisconsin during the afternoon of August 7th. One of these storms produced an EF3 tornado that started in Boscobel (Grant County) and traveled east/southeast before dissipating south of Blue River (Grant County). Along the path of the tornado, 6 homes sustained enough damage to be considered total losses but no injuries occurred. Flash flooding caused a mud slide along State Highway 33 southeast of La Crosse (La Crosse County) and washed out part of County Road NN south of St. Joseph (La Crosse County). Water also covered portions of State Highway 27 and County Roads J and X near Melvina (Monroe County). Coon Creek went out of its banks and caused extensive damage to the baseball field in Coon Valley (Vernon County). A county wide disaster was declared by Vernon County officials because of the flood damage.

View location on OpenStreetMap → (43.1305, -90.7199)

Source: NOAA Storm Events Database, event_id 975879. Narrative written by the NWS forecast office that issued the report.