For the following areas. Nearshore Waters from Winthrop Harbor to Calumet Harbor. Nearshore Waters from Calumet Harbor to Michigan City. Open Waters from Winthrop Harbor to Michigan City out to Mid Lake. At 628 AM CDT, strong thunderstorms were located along a line extending from Waukegan Harbor to Elgin to near Dixon, moving east at 45 knots. HAZARD. Wind gusts to 40 knots. SOURCE. Radar indicated and automated land based observations. IMPACT. Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include. Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Winthrop Harbor, Indiana Harbor, Montrose Harbor, Waukegan Harbor, Burnham Harbor, and Hammond Marina.

At 729 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 39 miles west of Van Buren SP to near South Haven to near Comstock Northwest to near Charlotte. Movement was southeast at 40 mph. HAZARD. Wind gusts up to 50 mph and half inch hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. Niles, Sturgis, Coldwater, Benton Harbor, St. Joseph, Hillsdale, Three Rivers, Dowagiac, Buchanan, Benton Heights, Fair Plain, Bronson, Bridgman, Jonesville, Constantine, Berrien Springs, Cassopolis, Watervliet, Quincy, and Union City. This includes the following highways. Interstate 196 between mile markers 0 and 7. Interstate 69 in Michigan between mile markers 1 and 21. Interstate 94 in Michigan between mile markers 7 and 42.