638 FZUS71 KOKX 160300 MWSOKX Marine Weather Statement National Weather Service New York NY 1100 PM EDT Wed Apr 15 2026 ANZ331-160400- 1100 PM EDT Wed Apr 15 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Long Island Sound East of New Haven CT / Port Jefferson NY to the Mouth of the Connecticut River... At 1100 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots and small hail. This thunderstorm was located over The Thimbles, moving east at 30 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, lightning strikes, and heavy downpours. Boaters should seek safe harbor immediately until this storm passes. 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 4130 7254 4130 7250 4113 7249 4112 7278 4127 7276 4126 7270 4129 7267 4133 7268 4128 7263 4129 7259 4131 7261 4133 7259 $$ BR  658 FZUS73 KMKX 160312 MWSMKX Marine Weather Statement National Weather Service Milwaukee/Sullivan WI 1012 PM CDT Wed Apr 15 2026 LMZ646-160322- /O.CAN.KMKX.MA.W.0015.000000T0000Z-260416T0345Z/ 1012 PM CDT Wed Apr 15 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore waters from Wind Point WI TO Winthrop Harbor IL... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. && LAT...LON 4300 8721 4306 8710 4278 8706 4266 8715 4247 8740 4248 8771 4261 8762 4272 8752 4279 8745 4293 8730 TIME...MOT...LOC 0312Z 269DEG 26KT 4301 8702 4292 8703 4268 8725 4244 8764 $$ LMZ673-675-160345- /O.CON.KMKX.MA.W.0015.000000T0000Z-260416T0345Z/ 1012 PM CDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT... For the following areas... Nearshore waters from Wind Point WI TO Winthrop Harbor IL... Lake Michigan from North Point Light WI to Winthrop Harbor IL 5 nm off shore to mid lake... At 1012 PM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 32 nm southwest of Muskegon Light to 34 nm west of Grand Haven Light to 23 nm east of Wind Pt. to 7 nm east of Winthrop Harbor, moving east at 25 knots. HAZARD...Waterspouts, wind gusts 34 knots or greater, and small hail. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Severe thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4300 8721 4306 8710 4278 8706 4266 8715 4247 8740 4248 8771 4261 8762 4272 8752 4279 8745 4293 8730 TIME...MOT...LOC 0312Z 269DEG 26KT 4301 8702 4292 8703 4268 8725 4244 8764 WATERSPOUT...POSSIBLE HAIL...<.75IN WIND...>34KTS $$ KUROSKI  955 FZUS73 KLOT 160315 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1015 PM CDT Wed Apr 15 2026 LMZ740-777-160415- /O.CON.KLOT.MA.W.0025.000000T0000Z-260416T0415Z/ 1015 PM CDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... At 1014 PM CDT, strong thunderstorms were located along a line extending from 16 nm east of Winthrop Harbor to 8 nm northwest of Wilmette Harbor, moving east at 30 knots. The Waukegan airport measured a gust to 31 knots with these storms at 919 PM CDT. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Winthrop Harbor and Waukegan Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4246 8702 4212 8696 4211 8760 4208 8768 4212 8774 4227 8783 4248 8780 TIME...MOT...LOC 0314Z 267DEG 32KT 4248 8743 4215 8785 HAIL...0.00IN WIND...40KTS $$ Ratzer  487 FZUS73 KLOT 160317 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1017 PM CDT Wed Apr 15 2026 LMZ741>745-779-160445- /O.CON.KLOT.MA.W.0026.000000T0000Z-260416T0445Z/ 1017 PM CDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1145 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 Wilmette Harbor to Michigan City out to Mid Lake... At 1016 PM CDT, strong thunderstorms were located along a line extending from 6 nm west of Wilmette Harbor to 6 nm east of Aurora, moving east at 40 knots. A wind gust to 46 knots was reported with these storms at the DuPage County Airport in West Chicago, Illinois at 959 PM CDT. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Indiana Harbor, Montrose Harbor, Burnham Harbor, Hammond Marina, Jackson Park Harbor, and Belmont Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8744 4169 8750 4183 8760 4189 8762 4189 8760 4190 8762 4208 8768 4211 8760 4212 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 0316Z 272DEG 38KT 4212 8780 4174 8815 HAIL...0.00IN WIND...49KTS $$ Ratzer  719 FZUS73 KGRR 160325 MWSGRR Marine Weather Statement National Weather Service Grand Rapids MI 1125 PM EDT Wed Apr 15 2026 LMZ845>847-872-874-876-160415- /O.CON.KGRR.MA.W.0018.000000T0000Z-260416T0415Z/ 1125 PM EDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT... For the following areas... Nearshore and Open Waters from South Haven to Whitehall MI... At 1125 PM EDT, strong thunderstorms were located along a line extending from the Muskegon Light to 20 nm west of the Holland Light, moving east at 30 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Saugatuck Pier Heads, Port Sheldon Harbor, Grand Haven Light, Muskegon Light, and Holland Light. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4241 8628 4244 8636 4246 8702 4283 8707 4328 8637 4308 8625 4292 8621 4269 8621 TIME...MOT...LOC 0325Z 274DEG 32KT 4320 8633 4278 8669 HAIL...<.75IN WIND...>34KTS $$ CAS  560 FZUS73 KMKX 160332 MWSMKX Marine Weather Statement National Weather Service Milwaukee/Sullivan WI 1032 PM CDT Wed Apr 15 2026 LMZ673-675-160342- /O.CAN.KMKX.MA.W.0015.000000T0000Z-260416T0345Z/ 1032 PM CDT Wed Apr 15 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Lake Michigan from North Point Light WI to Winthrop Harbor IL 5 nm off shore to mid lake... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. && LAT...LON 4300 8721 4306 8710 4278 8706 4266 8715 4247 8740 4248 8771 4261 8762 4272 8752 4279 8745 4293 8730 TIME...MOT...LOC 0331Z 269DEG 26KT 4301 8683 4292 8684 4268 8706 4244 8745 $$ KUROSKI  103 FZUS73 KLOT 160346 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1046 PM CDT Wed Apr 15 2026 LMZ740-160355- /O.CAN.KLOT.MA.W.0025.000000T0000Z-260416T0415Z/ 1046 PM CDT Wed Apr 15 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. && LAT...LON 4246 8702 4212 8696 4211 8760 4247 8738 TIME...MOT...LOC 0345Z 268DEG 23KT 4245 8708 4212 8741 $$ LMZ777-160415- /O.CON.KLOT.MA.W.0025.000000T0000Z-260416T0415Z/ 1046 PM CDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT... For the following areas... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... At 1045 PM CDT, strong thunderstorms were located along a line extending from 31 nm east of Winthrop Harbor to 12 nm east of Wilmette Harbor, moving east at 25 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. 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 4246 8702 4212 8696 4211 8760 4247 8738 TIME...MOT...LOC 0345Z 268DEG 23KT 4245 8708 4212 8741 HAIL...0.00IN WIND...>34KTS $$ Ratzer  226 FZUS73 KLOT 160347 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1047 PM CDT Wed Apr 15 2026 LMZ741>745-779-160445- /O.CON.KLOT.MA.W.0026.000000T0000Z-260416T0445Z/ 1047 PM CDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT... For the following areas... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... At 1047 PM CDT, strong thunderstorms and an associated gust front were located along a line extending from 14 nm east of Wilmette Harbor to near Midway Airport, moving east at 30 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Indiana Harbor, Montrose Harbor, Burnham Harbor, Hammond Marina, Jackson Park Harbor, and Belmont Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8744 4169 8750 4183 8760 4189 8762 4189 8760 4190 8762 4208 8768 4211 8760 4212 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 0347Z 272DEG 32KT 4210 8735 4172 8770 HAIL...0.00IN WIND...40KTS $$ Ratzer