WASHTENAW COUNTY, MI - Nearly 20,000 people are without power in Washtenaw County. An afternoon storm and possible tornado knocked out power for roughly 19,900 people as of 5 p.m. Sept. 3, according to the DTE Energy Outage Map.

After storms hit the Detroit region on Wednesday night, more rolled through on Thursday afternoon prompting tornado warnings from the NWS.

A tornado warning affecting counties throughout Southeast Michigan left some Ypsilanti residents without power and damaged electrical lines and trees.

Before the storm passed through the area, students and staff at schools around Washtenaw County were instructed to remain in designated areas until this afternoon's tornado warning had passed.

Southeast Michigan is under a severe thunderstorm watch for Thursday afternoon and evening, with the risk of strong winds and hail.