109 WHUS53 KMQT 302307 SMWMQT LSZ249-250-266-010000- /O.NEW.KMQT.MA.W.0023.260630T2307Z-260701T0000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 707 PM EDT Tue Jun 30 2026 The National Weather Service in Marquette has issued a * Special Marine Warning for... 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... * Until 800 PM EDT. * At 707 PM EDT, a severe thunderstorm was located 8 nm south of Shelter Bay, moving northeast at 35 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... Miners Castle, Laughing Whitefish Point, Pictured Rocks National Lakeshore, Shelter Bay, Grand Island, and Au Train Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4670 8607 4657 8630 4653 8642 4637 8665 4643 8677 4640 8690 4648 8702 4647 8712 4684 8698 TIME...MOT...LOC 2307Z 227DEG 37KT 4633 8697 HAIL...>.75IN WIND...>34KTS $$ DT 730 WHUS53 KGRB 302333 SMWGRB LMZ541-542-563-565-010030- /O.NEW.KGRB.MA.W.0027.260630T2333Z-260701T0030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Green Bay WI 633 PM CDT Tue Jun 30 2026 The National Weather Service in Green Bay has issued a * Special Marine Warning for... Nearshore waters from Washington Island to Two Rivers... Open waters of Lake Michigan from Rock Island Passage to Two Rivers... * Until 730 PM CDT. * At 633 PM CDT, a strong thunderstorm was located 9 NM northwest of Algoma, or 9 NM northeast of Bay Shore Park, moving east at 40 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The strong thunderstorm will be near... Algoma around 645 PM CDT. Sturgeon Bay and Sturgeon Bay Ship Canal Light around 650 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Boaters should seek safe harbor immediately until this storm passes. Wind gusts 34 knots or greater, high waves, dangerous lightning, and heavy rain are possible with this storm. && LAT...LON 4448 8752 4446 8750 4461 8744 4464 8739 4479 8731 4481 8734 4480 8731 4481 8728 4485 8727 4488 8721 4487 8670 4428 8694 4431 8754 4444 8750 TIME...MOT...LOC 2332Z 268DEG 39KT 4470 8761 MAX HAIL SIZE...0.00 IN MAX WIND GUST...50 KTS $$ Uhlmann 854 WHUS53 KMQT 302355 SMWMQT LSZ249>251-266-267-010100- /O.NEW.KMQT.MA.W.0024.260630T2355Z-260701T0100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 755 PM EDT Tue Jun 30 2026 The National Weather Service in Marquette has issued a * Special Marine Warning for... Grand Marais to Whitefish Point 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 from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border... Marquette to Munising MI... Munising to Grand Marais MI... * Until 900 PM EDT. * At 753 PM EDT, severe thunderstorms were located along a line extending from near Laughing Whitefish Point to Pictured Rocks National Lakeshore, moving northeast at 20 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... Grand Sable Dunes, Shot Point, Shelter Bay, Grand Island, Au Train Island, Miners Castle, Laughing Whitefish Point, and Pictured Rocks National Lakeshore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4682 8581 4663 8607 4663 8615 4653 8642 4638 8665 4643 8677 4641 8682 4644 8696 4648 8702 4647 8713 4649 8725 4689 8701 TIME...MOT...LOC 2353Z 225DEG 20KT 4656 8707 4659 8637 HAIL...>.75IN WIND...40KTS $$ GS