National Weather Service United States Department of Commerce

Snowy, Very Cold and Windy from the Northern Plains to Great Lakes; Critical Fire Weather in South Texas

Moderate to heavy lake effect snow is expected downwind of the Great Lakes, with the Chicago metro potentially receiving 6 to 12 inches of snowfall. A frigid airmass will bring very cold temperatures to the Central U.S. and Mississippi Valley today, migrating into the Eastern U.S. on Monday. Dry and windy weather will bring critical fire weather conditions to South Texas today. Read More >

The National Weather Service in Milwaukee/Sullivan will be conducting a survey of the southern Washington County area on Thursday.  Radar and spotter reports confirm a likely tornado touchdown in the area between Monches in far northern Waukesha County to the Hubertus area.  

Minor structural damage and tree damage was reported in the vicinity. 

The below image depicts the Milwaukee/Sullivan radar imagery at 4:53 pm.  The reflectivity is on the left and the likely tornadoes circulation is on the right. The circulation measured on radar was about 1300 ft above the ground.  This was about the time a Tornado Warning was issued for southern Washington County. 

radar imagery

Check back for more details later Thursday, after the survey.