MILWAUKEE,Wis. – The National weather Service confirmed eight tornado touchdowns in Wisconsin in the December 15 storm: > Rural Clark County: EF-2.
> Stanley: EF-2.
> Rural Chippewa County: EF-2.
> Rural Clark County: EF-2
> A Mississippi River island: Across from Homer, Minnesota: EF-1.
> Levis. Along the Trempealeau-Jackson county line: EF-1.
> Rural Clark County: EF-1.
> Trempealeau: EF-0.
The Weather Service measures tornado voracity on the Fujita EF scale, from EF-0 for mild to EF-5 for catastrophic.
Details: Tornado summary