Special Marine Warning

For the following areas... 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... Marquette to Munising MI... Munising to Grand Marais MI...

At 259 PM EDT, strong thunderstorms were located along a line extending from 25 nm northwest of Grand Sable Dunes to 26 nm north of Grand Island to 15 nm south of Stannard Rock, moving south at 35 knots.

HAZARD...Wind gusts 34 knots or greater and small hail.

SOURCE...Radar indicated.

IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves.

Strong thunderstorms will remain over mainly open waters.