728 FZUS73 KDLH 172003 MWSDLH Marine Weather Statement National Weather Service Duluth MN 303 PM CDT Fri Apr 17 2026 LSZ143>145-162-172015- /O.CON.KDLH.MA.W.0001.000000T0000Z-260417T2015Z/ 303 PM CDT Fri Apr 17 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 315 PM CDT... For the following areas... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Silver Bay Harbor to Two Harbors MN... Two Harbors to Duluth MN... At 302 PM CDT, strong thunderstorms were located along a line extending from 11 nm southwest of Barkers Island to 25 nm south of Superior Harbor, moving northeast at 45 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. strong thunderstorms will be near... Superior Harbor, Barkers Island, Duluth Harbor, and Superior Entry around 310 PM CDT. Duluth Lift Bridge Channel around 315 PM CDT. French River and McQuade Harbor around 325 PM CDT. Stoney Point around 330 PM CDT. Knife River Marina around 335 PM CDT. Other locations impacted by strong thunderstorms include Superior Entry. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Frequent 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 4678 9214 4711 9156 4698 9132 4671 9167 4666 9200 4666 9203 4671 9210 4666 9211 4665 9216 4662 9221 4663 9224 TIME...MOT...LOC 2002Z 221DEG 47KT 4659 9225 4628 9194 HAIL...<.75IN WIND...>34KTS $$ PA  571 FZUS71 KOKX 172024 MWSOKX Marine Weather Statement National Weather Service New York NY 424 PM EDT Fri Apr 17 2026 ANZ332-340-172130- 424 PM EDT Fri Apr 17 2026 ...STRONG THUNDERSTORMS OVER THE WATERS... The areas affected include... Long Island Sound East of the Mouth of the Connecticut River... Peconic and Gardiners Bays... At 423 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from Fishers Island to New London Harbor to near Niantic Bay, moving southwest at 10 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. Lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4129 7187 4110 7186 4107 7186 4106 7187 4101 7229 4109 7235 4115 7230 4116 7223 4120 7227 4127 7221 4133 7203 $$ JE  196 FZUS71 KBOX 172025 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 425 PM EDT Fri Apr 17 2026 ANZ235-237-256-282-283-172200- 425 PM EDT Fri Apr 17 2026 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Block Island Sound... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM... Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM... Rhode Island Sound... At 425 PM 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 9 nm east of Block Island to Napeague Bay, moving southeast at 25 knots. Locations impacted include... The Coastal Waters Southeast Of Block Island and Buoy 44097 Southeast Of Block Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Expect gusty winds to around 30 knots...briefly rough seas and lightning strikes. Consider heading for safe harbor until these storms pass. This strong thunderstorms will produce winds to around 30 knots...and could pose a serious hazard for boaters. A Special Marine Warning may be issued when these storms reach the nearshore waters. Boaters should consider heading for shore before these storms arrive. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible and keep away from ungrounded metal objects. && LAT...LON 4118 7161 4115 7161 4115 7155 4119 7156 4125 7131 4077 7041 4052 7142 4055 7146 4076 7161 4105 7184 4112 7186 $$ Loconto  293 FZUS71 KOKX 172039 MWSOKX Marine Weather Statement National Weather Service New York NY 439 PM EDT Fri Apr 17 2026 ANZ350-380-172130- 439 PM EDT Fri Apr 17 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Moriches Inlet to Montauk Point NY out 60 NM... At 439 PM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots and lightning. This thunderstorm was located 7 nm south of Napeague Bay, moving southeast at 30 knots. The strong thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 4058 7179 4088 7229 4098 7213 4100 7204 4103 7200 4085 7168 4076 7161 $$ JE  644 FZUS73 KDLH 172043 MWSDLH Marine Weather Statement National Weather Service Duluth MN 343 PM CDT Fri Apr 17 2026 LSZ143>146-162-172100- /O.CON.KDLH.MA.W.0002.000000T0000Z-260417T2100Z/ 343 PM CDT Fri Apr 17 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 400 PM CDT... For the following areas... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Port Wing to Sand Island WI... Silver Bay Harbor to Two Harbors MN... Two Harbors to Duluth MN... At 343 PM CDT, strong thunderstorms were located along a line extending from near Castle Danger to 7 nm south of Herbster, moving northeast at 60 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. strong thunderstorms will be near... Split Rock Lighthouse, Herbster, Twin Points Safe Harbor, Apostle Island Sea Caves, Siskwit Bay, Bark Bay, Maikwe Bay, Apostle Islands National Lake Shore, Meyers Beach, and Eagle Island around 350 PM CDT. Beaver Bay around 355 PM CDT. Other locations impacted by strong thunderstorms include Maikwe Bay, Brule Point, Meyers Beach, Bark Bay, Eagle Island, and Bark Point. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4692 9191 4715 9149 4729 9132 4692 9094 4691 9097 4682 9084 4679 9089 4688 9093 4689 9096 4684 9110 4683 9121 4674 9150 4670 9169 TIME...MOT...LOC 2043Z 227DEG 59KT 4706 9152 4672 9118 HAIL...<.75IN WIND...>34KTS $$ PA  850 FZUS73 KDLH 172047 MWSDLH Marine Weather Statement National Weather Service Duluth MN 347 PM CDT Fri Apr 17 2026 LSZ121-145>148-150-162-172130- /O.CON.KDLH.MA.W.0003.000000T0000Z-260417T2130Z/ 347 PM CDT Fri Apr 17 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 430 PM CDT... For the following areas... Chequamegon Bay-Bayfield to Oak Point WI... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Oak Point to Saxon Harbor WI... Outer Apostle Islands Beyond 5 NM from Mainland... Port Wing to Sand Island WI... Sand Island to Bayfield WI... At 347 PM CDT, strong thunderstorms were located along a line extending from near Herbster to 8 nm southwest of Ashland Breakwater Lighthouse, moving northeast at 60 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Ashland Breakwater Lighthouse, Ironwood Island, Basswood Island, Sand Island, Saxon Harbor, Stockton Island, Madeline Island, Devils Island, Cat Island, Manitou Island, North Twin Island, Herbster, Meyers Beach, York Island, Eagle Island, Apostle Islands National Lake Shore, La Pointe, Port Wing Harbor, Outer Island, and Michigan Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4656 9053 4661 9079 4656 9092 4657 9097 4667 9094 4670 9089 4676 9092 4687 9080 4690 9080 4693 9086 4692 9095 4684 9110 4683 9121 4672 9156 4684 9163 4736 9046 4702 9020 4666 9044 4657 9043 4656 9041 TIME...MOT...LOC 2047Z 235DEG 59KT 4693 9127 4654 9104 HAIL...<.75IN WIND...>34KTS $$ PA