The areas affected include... Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to mid lake... Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake... Manistee to Point Betsie MI... Point Betsie to Sleeping Bear Point MI... Sleeping Bear Point to Grand Traverse Light MI...
At 1211 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots and small hail. These thunderstorms were located along a line extending from 9 nm east of Cana Island Light to 20 nm west of Point Betsie to 23 nm east of Algoma, moving east at 20 knots.