EF1 tornado in Monroe County, Wisconsin

An EF1 tornado caused an intermittent damage path along and south of State Highway 21 between Tomah and Wyeville. The damage was limited to trees and a few power poles.

A line of severe thunderstorms moved across western Wisconsin during the evening of August 27th. A brief tornado touched down and had an intermittent damage path between Tomah and Wyeville (Monroe County). The damage was limited to trees and power poles. These storms blew down trees and caused roof damage in Sparta (Monroe County), rolled a camper and damaged several signs near Tomah (Monroe County) and downed trees around Hixton (Jackson County) and in the Town of Cleveland (Jackson County). The storms then became oriented in an east to west line and dumped copious amounts of rain from southern La Crosse County and northern Vernon County east across the southern sections of Monroe, Juneau and Adams Counties. Numerous roads were closed because of flooding or mudslides, homes had to be evacuated with several water rescues were performed. Towns that were hit hard by the flooding included Coon Valley, Ontario (Vernon County), Elroy and Wonewoc (Juneau County). The eastbound Amtrak Empire Builder had to be halted near Tomah because of a washout on the rail line near Mauston (Juneau County). In Monroe and Vernon Counties, four earthen flood control dams failed and seven others sustained damage. Rainfall totals of 6 to 10 inches were common in this heavy rain band with the highest reported totals being 9.14 inches in Union Center (Juneau County) and 9.98 inches near Westby (Vernon County). The runoff later produced historic flooding on the Kickapoo River with several record flood crests established. Damages in Juneau County exceeded $22 million of which $6.5 million was from Elroy. The State of Wisconsin Governor declared a state of emergency for the entire state. A federal disaster declaration was made for La Crosse, Monroe, Juneau, Adams, Vernon, Crawford and Richland Counties.