Severe thunderstorm outlooks issued by NOAA's Storm Prediction Center can show a threat level from 1 to 5. They are used to show how widespread and intense severe weather could be on a given day.

A multi-day outbreak of severe thunderstorms will begin today and last through the weekend in the Midwest, South and East. Strong, long-tracked tornadoes, widespread damaging winds, large hail and flash flooding are all threats this dangerous bout of severe weather could produce.

The Storm Prediction Center has shifted the widespread severe weather threat just a little to the northeast, putting the very southwest corner of Lower Michigan in the chance of damaging wind gusts and even a strong tornado.