A possible derecho will race its way east across southern Wisconsin, Northern Illinios, and into Michigan through Monday morning. In its wake strong instability should occur, this should lead to a few supercell thunderstorms across lower Wisconsin late this afternoon. Yellow indicates where there is a risk of severe weather, red indicates the best chance for significant severe weather, and magenta indicates the best chance a tornado.

Click on the day to see current Storm Prediction Center convective outlooks.