572 WHUS53 KMQT 201602 SMWMQT LSZ242-243-263-264-201645- /O.NEW.KMQT.MA.W.0053.260720T1602Z-260720T1645Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 1202 PM EDT Mon Jul 20 2026 The National Weather Service in Marquette has issued a * Special Marine Warning for... Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park... Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border... Ontonagon to Upper Entrance of Portage Canal MI... Upper Entrance of Portage Canal to Eagle River MI... * Until 1245 PM EDT. * At 1202 PM EDT, a severe thunderstorm was located 8 nm northwest of The Upper Entrance of Portage Canal, or 44 nm east of The Western Lake Superior Buoy, moving east at 25 knots. HAZARD...Wind gusts to 40 knots and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4739 8802 4736 8807 4739 8808 4738 8827 4727 8844 4720 8836 4717 8836 4720 8846 4724 8841 4727 8847 4722 8854 4730 8885 4740 8882 TIME...MOT...LOC 1602Z 284DEG 24KT 4734 8876 HAIL...>.75IN WIND...40KTS $$ NJL 710 WHUS52 KMHX 201608 SMWMHX AMZ182-201715- /O.NEW.KMHX.MA.W.0205.260720T1608Z-260720T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Newport/Morehead City NC 1208 PM EDT Mon Jul 20 2026 The National Weather Service in Newport has issued a * Special Marine Warning for... Waters from Oregon Inlet to Cape Hatteras NC from 20 to 60 NM... * Until 115 PM EDT. * At 1208 PM EDT, a severe thunderstorm capable of producing waterspouts was located 50 nm east of Ar145, or 51 nm southeast of South Tower, moving southeast at 20 knots. HAZARD...Waterspouts, wind gusts to nearly 50 knots, and large hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * The severe thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until this storm passes. Wind gusts to nearly 50 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 3551 7424 3572 7451 3583 7441 3583 7430 3581 7426 3560 7423 TIME...MOT...LOC 1608Z 308DEG 19KT 3575 7437 WATERSPOUT...POSSIBLE HAIL...>.75IN WIND...49KTS $$ 26 914 WHUS52 KMHX 201624 SMWMHX AMZ131-230-231-201715- /O.NEW.KMHX.MA.W.0206.260720T1624Z-260720T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Newport/Morehead City NC 1224 PM EDT Mon Jul 20 2026 The National Weather Service in Newport has issued a * Special Marine Warning for... Albemarle Sound... Alligator River... Croatan and Roanoke Sounds... * Until 115 PM EDT. * At 1223 PM EDT, a severe thunderstorm capable of producing waterspouts was located over The Mouth Of The Alligator River, moving southeast at 5 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. * Locations impacted include... The Center Of Roanoke Sound, The Center Of Croatan Sound, Kill Devil Hills, The Vicinity Of Mashoes, Alligator River Bridge, and The Mouth Of The Alligator River. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 3590 7610 3611 7598 3603 7568 3577 7555 3576 7567 TIME...MOT...LOC 1623Z 298DEG 6KT 3600 7595 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ 26 436 WHUS52 KTBW 201634 SMWTBW GMZ853-201715- /O.NEW.KTBW.MA.W.0105.260720T1634Z-260720T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Tampa Bay Area Ruskin FL 1234 PM EDT Mon Jul 20 2026 The National Weather Service in Ruskin has issued a * Special Marine Warning for... Coastal waters from Englewood to Tarpon Springs FL out 20 NM... * Until 115 PM EDT. * At 1234 PM EDT, a strong thunderstorm was located near Egmont Key, moving north at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. Make sure all on board are wearing life jackets. * Locations impacted include... Treasure Island Reef, Manatee 3 Mile North Reef, Pass-A-Grille Channel, Saint Pete Beach Reef, Madeira Beach Reef, Egmont Key, Indian Rocks Beach, Manatee 7 Mile North Reef, and Saint Pete Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 2775 8273 2775 8274 2774 8275 2774 8273 2761 8274 2760 8276 2747 8276 2748 8296 2793 8298 2792 8275 2785 8277 2782 8276 2780 8277 2782 8278 2781 8279 2784 8283 2776 8277 2781 8276 TIME...MOT...LOC 1634Z 182DEG 32KT 2758 8286 HAIL...0.00IN WIND...>34KTS $$ TBW 398 WHUS53 KMQT 201638 SMWMQT LSZ245-246-265-266-201745- /O.NEW.KMQT.MA.W.0054.260720T1638Z-260720T1745Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 1238 PM EDT Mon Jul 20 2026 The National Weather Service in Marquette has issued a * Special Marine Warning for... 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... Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore... Manitou Island to Point Isabelle MI... Point Isabelle to Lower Entrance of Portage Canal MI... * Until 145 PM EDT. * At 1237 PM EDT, severe thunderstorms were located along a line extending from near Bete Grise to near Grand Traverse Bay, moving east at 40 knots. HAZARD...Wind gusts 34 knots or greater and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... Stannard Rock, Bete Grise, and Point Isabelle. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4731 8686 4706 8750 4719 8828 4733 8807 4735 8806 4744 8782 TIME...MOT...LOC 1637Z 282DEG 39KT 4740 8784 4720 8835 HAIL...>.75IN WIND...>34KTS $$ NJL 824 WHUS53 KMQT 201641 SMWMQT LSZ246>248-265-201745- /O.NEW.KMQT.MA.W.0055.260720T1641Z-260720T1745Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Marquette MI 1241 PM EDT Mon Jul 20 2026 The National Weather Service in Marquette has issued a * Special Marine Warning for... Huron Islands to Marquette MI... Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore... Point Isabelle to Lower Entrance of Portage Canal MI... Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays... * Until 145 PM EDT. * At 1241 PM EDT, severe thunderstorms were located along a line extending from near Grand Traverse Bay to 7 nm west of The Lower Entrance of Portage Canal, moving east at 40 knots. HAZARD...Wind gusts 34 knots or greater and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * Locations impacted include... Grand Traverse Bay, The Lower Entrance of Portage Canal, and The Huron Islands. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4707 8747 4683 8783 4686 8800 4686 8816 4678 8827 4682 8835 4672 8842 4674 8853 4695 8852 4704 8856 4721 8826 TIME...MOT...LOC 1641Z 277DEG 42KT 4714 8825 4696 8862 HAIL...>.75IN WIND...>34KTS $$ NJL 768 WHUS52 KTAE 201645 SMWTAE GMZ730-755-765-775-201945- /O.NEW.KTAE.MA.W.0212.260720T1645Z-260720T1945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Tallahassee FL 1245 PM EDT Mon Jul 20 2026 The National Weather Service in Tallahassee has issued a * Special Marine Warning for... Apalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm... Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm... Coastal waters from Suwannee River to Keaton Beach out 20 NM... Waters from Suwannee River to Apalachicola FL from 20 to 60 NM... * Until 345 PM EDT. * At 1244 PM EDT, severe thunderstorms capable of producing waterspouts were located in rainbands and squalls along a line extending from 17 nm east of Buckeye Reef to 26 nm southwest of S Tower, moving north at 25 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Waterspouts can quickly form and capsize boats...damage vessels...and create suddenly higher waves. Make sure all on board are in a secure location and wearing life jackets. Expect wind gusts in excess of 34 knots...suddenly higher waves...frequent lightning...and heavy downpours. Make sure all on board are wearing life jackets. * Locations impacted include... Buckeye Reef, O Tower, K Tower, S Tower, V Tower, Horseshoe Beach, Apalachicola, C Tower, St George Island, Marker 24 Barge, and St. Marks. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 2931 8315 2885 8405 2894 8412 2869 8452 2859 8497 2960 8498 2962 8508 2961 8498 2972 8498 2972 8508 2966 8508 2975 8509 2995 8450 3016 8430 3017 8401 3004 8375 2979 8353 2969 8336 2953 8334 2945 8316 TIME...MOT...LOC 1644Z 164DEG 24KT 2956 8359 2891 8485 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...>34KTS $$ 55-SCHOLL 963 WHUS52 KTBW 201653 SMWTBW GMZ850-201745- /O.NEW.KTBW.MA.W.0106.260720T1653Z-260720T1745Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Tampa Bay Area Ruskin FL 1253 PM EDT Mon Jul 20 2026 The National Weather Service in Ruskin has issued a * Special Marine Warning for... Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM... * Until 145 PM EDT. * At 1252 PM EDT, a strong thunderstorm was located 13 nm west of Ozello, moving north at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. Make sure all on board are wearing life jackets. * Locations impacted include... Ozello, Crystal River, Hernando Beach, Cedar Key, Bayport, and Yankeetown. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 2930 8307 2923 8299 2924 8273 2915 8274 2890 8257 2853 8257 2846 8260 2845 8260 2844 8294 2888 8305 2919 8345 2920 8345 2930 8316 TIME...MOT...LOC 1652Z 163DEG 32KT 2882 8291 HAIL...0.00IN WIND...>34KTS $$ TBW