7/20/2026 8:13:00 AM until 7/20/2026 9:15:00 AM

SMWMQT The National Weather Service in Marquette has issued a * Special Marine Warning for... Black River To Ontonagon MI... Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park... Ontonagon to Upper Entrance of Portage Canal MI... * Until 915 AM EDT. * At 812 AM EDT, severe thunderstorms were located along a line extending from 11 nm northeast of The Western Lake Superior Buoy to 17 nm northeast of Oak Island, moving southeast at 35 knots. HAZARD...Wind gusts to 40 knots and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Locations impacted include... Ontonagon Marina.