There was a lot of straight-line wind action that did damage to homes, uprooted trees and downed power lines during the powerful storm that swept Michigan on Thursday night and Friday morning. But the National Weather Service says there were also several weak tornadoes spinning up along the storm’s leading edge.

The weather service additionally issued severe thunderstorm warnings for Benzie, Manistee, Van Buren, Allegan, Ottawa, Mason, Muskegon and Oceana counties. Gusts up to 70 mph and golf ball-size hail were expected in those areas.

A series of thunderstorms swept across lower Michigan late Thursday and into early Friday morning, leaving thousands without power. The National Weather Service shows a report of a tornado southwest of Lansing,