264 WHUS53 KMQT 271219 SMWMQT LSZ240-241-263-271315- /O.NEW.KMQT.MA.W.0085.260727T1219Z-260727T1315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 819 AM EDT Mon Jul 27 2026 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 915 AM EDT. * At 819 AM EDT, a severe thunderstorm was located 20 nm east of Oak Island, or 31 nm southwest of The Western Lake Superior Buoy, moving southeast at 70 knots. HAZARD...Wind gusts 34 knots or greater 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. * The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4695 9023 4678 8976 4673 8983 4665 9000 4679 9035 TIME...MOT...LOC 1219Z 299DEG 68KT 4684 9020 HAIL...>.75IN WIND...>34KTS $$ bw 692 WHUS53 KDLH 271228 SMWDLH LSZ146>148-150-162-271315- /O.NEW.KDLH.MA.W.0040.260727T1228Z-260727T1315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Duluth MN 728 AM CDT Mon Jul 27 2026 The National Weather Service in Duluth MN has issued a * Special Marine Warning for... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Oak Point to Saxon Harbor WI... Outer Apostle Islands Beyond 5 NM from Mainland... Port Wing to Sand Island WI... Sand Island to Bayfield WI... * Until 815 AM CDT. * At 727 AM CDT, a severe thunderstorm capable of producing waterspouts was located near York Island, moving southeast at 25 knots. HAZARD...Waterspouts, wind gusts 34 knots or greater, and large hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... Rocky Island, Raspberry Island, Ironwood Island, Basswood Island, Sand Island, Stockton Island, Oak Island, Madeline Island, Devils Island, Manitou Island, Hermit Island, York Island, Otter Island, Apostle Islands National Lake Shore, Sand Bay, Red Cliff, Michigan Island, and South Twin Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4685 9083 4687 9080 4690 9080 4693 9086 4692 9093 4702 9105 4715 9086 4684 9032 4665 9059 TIME...MOT...LOC 1227Z 314DEG 25KT 4704 9088 WATERSPOUT...POSSIBLE HAIL...>.75IN WIND...>34KTS $$ BJH 511 WHUS53 KDLH 271253 SMWDLH LSZ148-150-162-271330- /O.NEW.KDLH.MA.W.0041.260727T1253Z-260727T1330Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Duluth MN 753 AM CDT Mon Jul 27 2026 The National Weather Service in Duluth MN has issued a * Special Marine Warning for... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Oak Point to Saxon Harbor WI... Outer Apostle Islands Beyond 5 NM from Mainland... * Until 830 AM CDT. * At 753 AM CDT, a severe thunderstorm was located 7 nm east of Oak Point, moving east at 25 knots. HAZARD...Wind gusts 34 knots or greater 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... Saxon Harbor and Marble Point. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4656 9056 4657 9058 4664 9069 4673 9064 4670 9041 4665 9044 4657 9043 4657 9042 4656 9041 TIME...MOT...LOC 1253Z 291DEG 24KT 4665 9058 HAIL...>.75IN WIND...>34KTS $$ BJH