910 FZUS73 KMQT 290909 MWSMQT Marine Weather Statement National Weather Service Marquette MI 509 AM EDT Mon Jun 29 2026 LMZ221-290945- 509 AM EDT Mon Jun 29 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Green Bay North of line from Cedar River MI to Rock Island Passage... At 509 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots and small hail. This thunderstorm was located 11 nm southwest of Minneapolis Shoal, moving northeast at 20 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. Intense lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4541 8729 4545 8735 4560 8724 4542 8691 4540 8696 $$ tdud 396 FZUS73 KGRB 290931 MWSGRB Marine Weather Statement National Weather Service Green Bay WI 431 AM CDT Mon Jun 29 2026 LMZ541-563-291000- /O.CON.KGRB.MA.W.0025.000000T0000Z-260629T1000Z/ 431 AM CDT Mon Jun 29 2026 ...SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 5 AM CDT... For the following areas... Nearshore waters from Washington Island to Sturgeon Bay... Open waters of Lake Michigan from Rock Island Passage to Sturgeon Bay... At 431 AM CDT, a severe thunderstorm was located 10 NM south of Detroit Island, or 10 NM northeast of Cana Island Light, moving east at 20 knots. Another stronger storm was located 3 NM NE of Baileys Harbor, moving east northeast at 20 knots. HAZARD...Large hail. SOURCE...Radar indicated. IMPACT...Large hail could result in structural damage. This strong thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4507 8710 4510 8708 4508 8707 4509 8705 4516 8708 4513 8705 4515 8703 4516 8705 4522 8704 4522 8703 4525 8705 4521 8700 4523 8698 4526 8698 4529 8657 4502 8656 4508 8709 TIME...MOT...LOC 0905Z 271DEG 19KT 4516 8703 MAX HAIL SIZE...>.75 IN MAX WIND GUST...<34 KTS $$ JLA 831 FZUS73 KMQT 290932 MWSMQT Marine Weather Statement National Weather Service Marquette MI 532 AM EDT Mon Jun 29 2026 LMZ221-248-250-261-291015- 532 AM EDT Mon Jun 29 2026 A Marine Weather Statement has been issued for the following areas... 5NM East of a line from Fairport MI to Rock Island Passage... Green Bay North of line from Cedar River MI to Rock Island Passage... Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake... Seul Choix Point to Point Detour MI... At 531 AM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots and small hail. These thunderstorms were located along a line extending from 29 nm northwest of Point Detour to 19 nm northwest of St Martin Island to near Minneapolis Shoal to near Rock Island, moving east at 25 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. Intense lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4560 8729 4565 8726 4573 8712 4579 8713 4595 8697 4590 8688 4575 8692 4586 8684 4586 8683 4550 8644 4540 8692 4542 8694 4541 8701 $$ tdud 378 FZUS73 KMQT 290952 MWSMQT Marine Weather Statement National Weather Service Marquette MI 552 AM EDT Mon Jun 29 2026 LSZ248-249-266-291030- 552 AM EDT Mon Jun 29 2026 ...A STRONG THUNDERSTORM APPROACHING THE WATERS... The areas affected include... Huron Islands to Marquette MI... Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore... Marquette to Munising MI... At 552 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Presque Isle, moving northeast at 10 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 4648 8734 4649 8741 4660 8752 4669 8736 4667 8734 4665 8731 4671 8732 4688 8700 4665 8679 4646 8731 $$ tdud 781 FZUS73 KGRB 290953 MWSGRB Marine Weather Statement National Weather Service Green Bay WI 453 AM CDT Mon Jun 29 2026 LMZ541-563-291003- /O.EXP.KGRB.MA.W.0025.000000T0000Z-260629T1000Z/ 453 AM CDT Mon Jun 29 2026 ...SPECIAL MARINE WARNING WILL EXPIRE AT 5 AM CDT... The affected areas were... Nearshore waters from Washington Island to Sturgeon Bay... Open waters of Lake Michigan from Rock Island Passage to Sturgeon Bay... The thunderstorm has weakened and no longer poses a significant threat to boaters. && LAT...LON 4507 8710 4510 8708 4508 8707 4509 8705 4516 8708 4513 8705 4515 8703 4516 8705 4522 8704 4522 8703 4525 8705 4521 8700 4523 8698 4526 8698 4529 8657 4502 8656 4508 8709 TIME...MOT...LOC 0931Z 271DEG 19KT 4515 8683 $$ JLA