244 WHUS51 KBOX 040802 SMWBOX ANZ255-256-282-283-040900- /O.NEW.KBOX.MA.W.0046.260904T0802Z-260904T0900Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Boston/Norton MA 402 AM EDT Fri Sep 4 2026 The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket... 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... * Until 500 AM EDT. * At 402 AM EDT, a severe thunderstorm capable of producing waterspouts was located 10 nm southwest of The Coastal Waters South Of Marthas Vineyard, moving southeast at 25 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * The severe thunderstorm will remain over mainly open waters. LAT...LON 4102 7093 4116 7077 4080 7015 4060 7038 TIME...MOT...LOC 0802Z 310DEG 25KT 4104 7078 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ FT  900 WHUS53 KMKX 040808 SMWMKX LMZ643-644-669-671-040945- /O.NEW.KMKX.MA.W.0075.260904T0808Z-260904T0945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 308 AM CDT Fri Sep 4 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Lake Michigan nearshore and open waters to mid lake from Sheboygan WI to North Port Light WI... * Until 445 AM CDT. * At 307 AM CDT, strong thunderstorms were located along a line extending from 8 nm southeast of Manitowoc to near Sheboygan to 10 nm west of Cedar Grove, moving east at 25 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... North Pt. Lt. and Port Washington. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4390 8756 4383 8709 4343 8715 4306 8710 4306 8787 4324 8791 4339 8787 4349 8779 4358 8778 4368 8770 4390 8773 TIME...MOT...LOC 0807Z 279DEG 23KT 4400 8754 4377 8780 4355 8805 HAIL...0.00IN WIND...>34KTS $$ WAGNER  999 FZUS71 KOKX 040816 MWSOKX Marine Weather Statement National Weather Service New York NY 416 AM EDT Fri Sep 4 2026 ANZ350-380-040900- 416 AM EDT Fri Sep 4 2026 A Marine Weather Statement has been issued for the following areas... Moriches Inlet to Montauk Point NY out 60 NM... At 416 AM EDT, Doppler radar indicated a thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located 8 nm southeast of Shinnecock Inlet, moving east at 35 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 4045 7196 4061 7265 4086 7239 4082 7166 4079 7164 $$ DR  425 FZUS71 KBOX 040822 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 422 AM EDT Fri Sep 4 2026 ANZ235-237-256-040915- 422 AM EDT Fri Sep 4 2026 ...A STRONG THUNDERSTORM APPROACHING THE WATERS... The areas affected include... Block Island Sound... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Rhode Island Sound... At 422 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located near Charlestown Breachway, moving southeast at 25 knots. Locations impacted include... Charlestown Breachway, Point Judith Light, Block Island Sound, and The Coastal Waters West Of Block Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Expect gusty winds to around 30 knots...briefly rough seas and lightning strikes. Consider heading for safe harbor until this storm passes. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible and keep away from ungrounded metal objects. && LAT...LON 4133 7176 4133 7172 4136 7162 4138 7153 4136 7149 4137 7148 4127 7123 4090 7138 4112 7166 4111 7166 4113 7167 4126 7184 $$ FT  336 WWUS53 KMKX 040822 SVSMKX Severe Weather Statement National Weather Service Milwaukee/Sullivan WI 322 AM CDT Fri Sep 4 2026 WIC027-039-089-117-131-040832- /O.EXP.KMKX.SV.W.0274.000000T0000Z-260904T0830Z/ Ozaukee WI-Fond du Lac WI-Washington WI-Dodge WI-Sheboygan WI- 322 AM CDT Fri Sep 4 2026 ...THE SEVERE THUNDERSTORM WARNING FOR OZAUKEE...SOUTHEASTERN FOND DU LAC...NORTHERN WASHINGTON...NORTHEASTERN DODGE AND SHEBOYGAN COUNTIES WILL EXPIRE AT 330 AM CDT... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. && LAT...LON 4356 8779 4346 8780 4337 8788 4330 8789 4326 8791 4321 8790 4319 8790 4322 8798 4364 8856 4370 8827 4389 8816 4367 8772 TIME...MOT...LOC 0822Z 314DEG 36KT 4343 8790 $$ KUROSKI  499 FZUS71 KBOX 040834 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 434 AM EDT Fri Sep 4 2026 ANZ237-256-283-040844- /O.CAN.KBOX.MA.W.0045.000000T0000Z-260904T0845Z/ 434 AM EDT Fri Sep 4 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Block Island Sound... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM... The thunderstorm has moved out of the area and no longer poses a significant threat to boaters. LAT...LON 4096 7170 4113 7162 4093 7086 4073 7102 TIME...MOT...LOC 0828Z 291DEG 33KT 4086 7103 $$ FT  234 WHUS51 KBOX 040835 SMWBOX ANZ256-283-040930- /O.NEW.KBOX.MA.W.0047.260904T0835Z-260904T0930Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Boston/Norton MA 435 AM EDT Fri Sep 4 2026 The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM... * Until 530 AM EDT. * At 435 AM EDT, a strong thunderstorm was located 11 nm south of The Coastal Waters Southeast Of Block Island, moving southeast at 20 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The strong thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4072 7136 4088 7124 4066 7068 4043 7087 TIME...MOT...LOC 0835Z 302DEG 18KT 4077 7122 HAIL...0.00IN WIND...>34KTS $$ FT  415 FZUS73 KMKX 040836 MWSMKX Marine Weather Statement National Weather Service Milwaukee/Sullivan WI 336 AM CDT Fri Sep 4 2026 LMZ643-644-669-671-040945- /O.CON.KMKX.MA.W.0075.000000T0000Z-260904T0945Z/ 336 AM CDT Fri Sep 4 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 445 AM CDT... For the following areas... Lake Michigan nearshore and open waters to mid lake from Sheboygan WI to North Port Light WI... At 336 AM CDT, strong thunderstorms were located along a line extending from 14 nm east of Sheboygan to 15 nm east of Oostburg to near Port Washington, moving southeast at 30 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... North Pt. Lt. and Port Washington. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4390 8756 4383 8709 4343 8715 4306 8710 4306 8787 4324 8791 4339 8787 4349 8779 4358 8778 4368 8770 4390 8773 TIME...MOT...LOC 0836Z 293DEG 32KT 4383 8743 4353 8747 4339 8783 HAIL...<.75IN WIND...>34KTS $$ WAGNER  836 WHUS53 KGRR 040839 SMWGRR LMZ846>848-868-870-872-874-876-041045- /O.NEW.KGRR.MA.W.0068.260904T0839Z-260904T1045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Grand Rapids MI 439 AM EDT Fri Sep 4 2026 The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Nearshore Waters from Holland to Pentwater MI... Open Waters from South Haven to Manistee MI... * Until 645 AM EDT. * At 439 AM EDT, strong thunderstorms were located along a line extending from 13 nm east of Sheboygan to 31 nm west of White Lake Pier Heads to near Port Washington, moving east at 30 knots. HAZARD...Wind gusts to nearly 50 knots and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... White Lake Pier Heads, Holland Light, Little Sable Point Light, Port Sheldon Harbor, Grand Haven Light, Muskegon Light, and The White Lake Pierheads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4371 8712 4383 8708 4377 8645 4368 8653 4363 8654 4334 8641 4308 8625 4292 8621 4277 8621 4275 8706 4339 8715 TIME...MOT...LOC 0839Z 287DEG 29KT 4370 8743 4329 8714 4339 8776 HAIL...<.75IN WIND...49KTS $$ NJJ  883 WHUS51 KBOX 040844 SMWBOX ANZ235-237-256-040945- /O.NEW.KBOX.MA.W.0048.260904T0844Z-260904T0945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Boston/Norton MA 444 AM EDT Fri Sep 4 2026 The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Block Island Sound... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Rhode Island Sound... * Until 545 AM EDT. * At 444 AM EDT, a strong thunderstorm was located near Point Judith Light, moving east at 25 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Rhode Island Sound and The Coastal Waters Between Block Island And Marthas Vineyard. LAT...LON 4121 7153 4139 7147 4130 7079 4108 7092 TIME...MOT...LOC 0844Z 283DEG 27KT 4129 7141 HAIL...0.00IN WIND...>34KTS $$ FT  748 WGUS71 KPBZ 040847 FFSPBZ Flash Flood Statement National Weather Service Pittsburgh PA 447 AM EDT Fri Sep 4 2026 OHC081-PAC003-125-WVC009-029-040945- /O.CON.KPBZ.FF.W.0136.000000T0000Z-260904T0945Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jefferson OH-Allegheny PA-Washington PA-Brooke WV-Hancock WV- 447 AM EDT Fri Sep 4 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM EDT EARLY THIS MORNING FOR NORTHEASTERN JEFFERSON OH, SOUTHERN ALLEGHENY, CENTRAL WASHINGTON, BROOKE AND HANCOCK COUNTIES... At 447 AM EDT, local law enforcement reported flooding from recent thunderstorms that produced heavy rainfall in the warned area. Between 0.5 and 2 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Law enforcement reported. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Mount Lebanon, Bethel Park, McMurray, Weirton, Washington, Canonsburg, Gastonville, Baldwin, Upper St. Clair, Scott Township, Whitehall, South Park Township, Cecil-Bishop, Jefferson Hills, Castle Shannon, Pleasant Hills, Clairton, Bridgeville and Toronto. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. && LAT...LON 4053 8062 4048 8052 4048 8036 4028 7978 4028 7980 4027 7980 4026 7979 4024 7981 4023 7981 4023 7979 4020 7986 4020 7987 4009 8011 4024 8035 4048 8077 4053 8063 FLASH FLOOD...OBSERVED $$ TC  692 FZUS74 KLIX 040852 MWSLIX Marine Weather Statement National Weather Service New Orleans LA 352 AM CDT Fri Sep 4 2026 GMZ532-534-040945- 352 AM CDT Fri Sep 4 2026 The areas affected include... Mississippi Sound... Lake Borgne... * At 352 AM CDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This strong thunderstorm was located over Waveland, moving west at 20 knots. Locations impacted include... Waveland, Bay St. Louis and Rigolets. PRECAUTIONARY/PREPAREDNESS ACTIONS... Report severe weather to the Coast Guard or nearest law enforcement agency. They will relay your report to the National Weather Service office. Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 3014 8968 3019 8965 3021 8960 3020 8957 3022 8946 3027 8943 3028 8942 3031 8937 3033 8940 3035 8940 3036 8939 3035 8929 3017 8929 3013 8968 TIME...MOT...LOC 0852Z 88DEG 18KT 3026 8934 $$ Zeringue  931 FZUS74 KLIX 040854 MWSLIX Marine Weather Statement National Weather Service New Orleans LA 354 AM CDT Fri Sep 4 2026 GMZ532-535-536-554-557-041030- 354 AM CDT Fri Sep 4 2026 The areas affected include... Mississippi Sound... Breton Sound... Chandeleur Sound... Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm... Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM... * At 354 AM CDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These strong thunderstorms were located along a line from 21 NM southeast of Pilottown to 7 NM west of Chandeleur Sound, or along a line from 20 NM east of Southwest Pass Of the Mississippi River to 7 NM west of Chandeleur Sound, moving northwest at 10 knots. Locations impacted include... Mainly open waters of Mississippi Sound, Breton Sound, Chandeleur Sound, Coastal Waters from Boothville LA to Southwest Pass of the Mississippi River out 20 nm and Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM. PRECAUTIONARY/PREPAREDNESS ACTIONS... Report severe weather to the Coast Guard or nearest law enforcement agency. They will relay your report to the National Weather Service office. 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. && LAT...LON 3016 8946 3018 8930 3006 8917 2940 8885 2879 8892 2887 8937 2889 8939 2902 8936 2912 8927 2910 8921 2916 8915 2918 8922 2928 8918 2930 8919 2920 8925 2925 8934 2933 8929 2930 8933 2957 8929 TIME...MOT...LOC 0854Z 114DEG 11KT 2890 8901 2945 8895 2990 8917 $$ Zeringue  714 FZUS71 KBOX 040857 MWSBOX Marine Weather Statement National Weather Service Boston/Norton MA 457 AM EDT Fri Sep 4 2026 ANZ255-256-282-283-040906- /O.EXP.KBOX.MA.W.0046.000000T0000Z-260904T0900Z/ 457 AM EDT Fri Sep 4 2026 ...THE SPECIAL MARINE WARNING WILL EXPIRE AT 500 AM EDT... The affected areas were... Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island... Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM... Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM... The thunderstorm has moved out of the area and no longer poses a significant threat to boaters. LAT...LON 4102 7093 4116 7077 4080 7015 4060 7038 TIME...MOT...LOC 0856Z 310DEG 25KT 4083 7046 $$ FT  479 WHUS51 KBOX 040857 SMWBOX ANZ255-282-041000- /O.NEW.KBOX.MA.W.0049.260904T0857Z-260904T1000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Boston/Norton MA 457 AM EDT Fri Sep 4 2026 The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket... Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM... * Until 600 AM EDT. * At 457 AM EDT, a strong thunderstorm was located 22 nm southwest of The Coastal Waters South Of Nantucket, moving southeast at 25 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The strong thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain below deck until hazardous weather passes. && LAT...LON 4082 7043 4096 7028 4062 6965 4041 6988 TIME...MOT...LOC 0857Z 309DEG 25KT 4085 7029 HAIL...0.00IN WIND...>34KTS $$ FT