Special Marine Warning for Huron Islands to Marquette MI; Marquette to Munising MI; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore +1 more

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For the following areas... Huron Islands to Marquette MI... Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore... Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore... Marquette to Munising MI... At 547 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Granite Island to near Granite Point to 7 nm southwest of Little Presque Isle, moving southeast at 25 knots. HAZARD...Waterspouts, wind gusts to nearly 50 knots, and large hail. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. Locations impacted include... Presque Isle, Little Presque Isle, and Granite Island.