


Special Marine Warning
Issued by NWS Marquette, MI
Issued by NWS Marquette, MI
762 WHUS53 KMQT 290652 SMWMQT LSZ240-241-263-290745- /O.NEW.KMQT.MA.W.0061.250629T0652Z-250629T0745Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 252 AM EDT Sun Jun 29 2025 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... Saxon Harbor WI to Black River MI... * Until 345 AM EDT. * At 251 AM EDT, strong thunderstorms were located along a line extending from 14 nm west of Chequamegon Bay to 6 nm south of Ashland Breakwater Lighthouse, moving east at 40 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4686 9031 4689 9028 4681 8980 4663 9004 4656 9034 4657 9042 4656 9044 4660 9044 4663 9043 4665 9045 TIME...MOT...LOC 0651Z 258DEG 39KT 4657 9117 4652 9086 4633 9082 HAIL...0.00IN WIND...40KTS $$ Jablonski