835 FZUS73 KLOT 031912 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 212 PM CDT Fri Jul 3 2026 LMZ740-031922- /O.CAN.KLOT.MA.W.0051.000000T0000Z-260703T1945Z/ 212 PM CDT Fri Jul 3 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 700 PM CDT for northeastern Illinois...northwestern Indiana...and the adjacent waters of Lake Michigan. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747 4170 8751 4183 8760 4189 8762 4189 8760 4190 8762 4199 8752 4214 8739 4247 8735 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 1912Z 263DEG 41KT 4241 8706 4207 8708 4190 8719 4175 8738 $$ LMZ741>745-777-779-031945- /O.CON.KLOT.MA.W.0051.000000T0000Z-260703T1945Z/ 212 PM CDT Fri Jul 3 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 245 PM CDT... For the following areas... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 212 PM CDT, severe thunderstorms were located along a line extending from 30 nm northwest of St. Joseph Light to 22 nm northwest of New Buffalo to 15 nm north of Burns Harbor to near Indiana Harbor, moving east at 40 knots. HAZARD...Wind gusts in excess of 50 knots and small hail. SOURCE...Buoy. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Calumet Harbor, Indiana Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Burnham Harbor, Marina Shores at Dune Harbor, 59th Street Marina, Hammond Marina, Jackson Park Harbor, and DuSable Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747 4170 8751 4183 8760 4189 8762 4189 8760 4190 8762 4199 8752 4214 8739 4247 8735 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 1912Z 263DEG 41KT 4241 8706 4207 8708 4190 8719 4175 8738 HAIL...<.75IN WIND...50KTS $$ Birk 548 FZUS73 KGRR 031926 MWSGRR Marine Weather Statement National Weather Service Grand Rapids MI 326 PM EDT Fri Jul 3 2026 LMZ847-872-031936- /O.CAN.KGRR.MA.W.0049.000000T0000Z-260703T2030Z/ 326 PM EDT Fri Jul 3 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore and Open Waters from Grand Haven to Whitehall MI... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for southwestern Michigan...and the adjacent waters of Lake Michigan. LAT...LON 4213 8656 4212 8696 4306 8709 4306 8626 4279 8621 4248 8625 4228 8634 4211 8649 TIME...MOT...LOC 1926Z 256DEG 32KT 4286 8660 4267 8644 4253 8669 4236 8668 4225 8679 4212 8675 $$ LMZ844>846-874-876-878-032030- /O.CON.KGRR.MA.W.0049.000000T0000Z-260703T2030Z/ 326 PM EDT Fri Jul 3 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 430 PM EDT... For the following areas... Nearshore and Open Waters from St Joseph to Grand Haven MI... At 326 PM EDT, severe thunderstorms were located along a line extending from 16 nm west of Port Sheldon Harbor to 9 nm west of Saugatuck Pier Heads to 19 nm northwest of South Haven Light to 16 nm northwest of St. Joseph to 11 nm west of St. Joseph Light, moving east at 30 knots. HAZARD...Wind gusts in excess of 65 knots and small hail. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... South Haven Light, St. Joseph Light, Holland Light, and St. Joseph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until these storms pass. Wind gusts in excess of 65 knots, small hail, high waves, dangerous lightning, and heavy rain are possible with these storms. && LAT...LON 4213 8656 4212 8696 4306 8709 4306 8626 4279 8621 4248 8625 4228 8634 4211 8649 TIME...MOT...LOC 1926Z 256DEG 32KT 4286 8660 4267 8644 4253 8669 4236 8668 4225 8679 4212 8675 HAIL...<.75IN WIND...65KTS $$ JC 673 FZUS73 KGRR 031951 MWSGRR Marine Weather Statement National Weather Service Grand Rapids MI 351 PM EDT Fri Jul 3 2026 LMZ844>846-874-876-878-032030- /O.CON.KGRR.MA.W.0049.000000T0000Z-260703T2030Z/ 351 PM EDT Fri Jul 3 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 430 PM EDT... For the following areas... Nearshore and Open Waters from St Joseph to Grand Haven MI... At 351 PM EDT, severe thunderstorms were located along a line extending from near Port Sheldon Harbor to Holland Light to 11 nm west of Saugatuck Pier Heads to near South Haven Light to 15 nm north of St. Joseph to near St. Joseph Light, moving northeast at 30 knots. HAZARD...Wind gusts in excess of 65 knots and small hail. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... South Haven Light, St. Joseph Light, Holland Light, and St. Joseph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until these storms pass. Wind gusts in excess of 65 knots, small hail, high waves, dangerous lightning, and heavy rain are possible with these storms. && LAT...LON 4212 8685 4246 8687 4246 8672 4260 8658 4306 8646 4306 8626 4279 8621 4248 8625 4228 8634 4211 8649 4213 8656 TIME...MOT...LOC 1951Z 242DEG 31KT 4295 8637 4276 8621 4262 8646 4245 8645 4234 8656 4221 8652 HAIL...<.75IN WIND...65KTS $$ JC 110 FZUS72 KKEY 031952 MWSKEY Marine Weather Statement National Weather Service Key West FL 352 PM EDT Fri Jul 3 2026 GMZ035-044-032015- 352 PM EDT Fri Jul 3 2026 ...A STRONG THUNDERSTORM NEAR BIG TORCH KEY... The areas affected include... Gulf of America from west end of Seven Mile Bridge to Halfmoon Shoal out to 5 fathoms... Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal out to the reef... At 351 PM EDT, National Weather Service meteorologists detected a a strong thunderstorm, capable of producing wind gusts near 30 knots. This thunderstorm was located over Toptree Hammock Key. The thunderstorm was nearly stationary. Locations that will be affected include... Howe Key, Big Munson Island, Coupon Bight, Raccoon Key, Ninefoot Shoal, Newfound Harbor, and Cudjoe Bay. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare for thunderstorms with wind gusts near 30 knots, locally rough and confused seas, occasional lightning strikes, and potentially blinding downpours. Get to a safe port as quickly, and as safely as possible. When downpours reduce visibility, slow down. && LAT...LON 2476 8138 2475 8138 2475 8139 2474 8137 2470 8137 2474 8140 2473 8140 2466 8137 2466 8136 2463 8135 2455 8156 2478 8164 2480 8147 2479 8148 2481 8139 $$ LIW 074 FZUS73 KLOT 031958 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 258 PM CDT Fri Jul 3 2026 LMZ743>745-779-032115- /O.CON.KLOT.MA.W.0053.000000T0000Z-260703T2115Z/ 258 PM CDT Fri Jul 3 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 415 PM CDT... For the following areas... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... At 257 PM CDT, a severe thunderstorm was located 7 nm south of Hammond Marina, or 7 nm southwest of Indiana Harbor, moving east at 35 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Surface observations. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Indiana Harbor, Michigan City, Burns Harbor, Marina Shores at Dune Harbor, and Hammond Marina. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4162 8733 4164 8743 4165 8744 4167 8742 4168 8743 4167 8744 4169 8750 4171 8753 4173 8753 4181 8697 4179 8697 4179 8696 4172 8690 4166 8709 4164 8712 4165 8714 4163 8716 4162 8727 4162 8732 4161 8733 TIME...MOT...LOC 1957Z 259DEG 35KT 4158 8755 HAIL...0.00IN WIND...50KTS $$ Birk