440 WHUS51 KLWX 042306 SMWLWX ANZ536-050000- /O.NEW.KLWX.MA.W.0115.260704T2306Z-260705T0000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 706 PM EDT Sat Jul 4 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD... * Until 800 PM EDT. * At 706 PM EDT, a strong thunderstorm was located near Dahlgren, moving northeast at 20 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Swan Point, Mathias Point, U.S. 301 Nice Memorial Bridge, Maryland Point, Nanjemoy Creek, Port Tobacco River, Popes Creek, Fairview Beach, and Colonial Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 3841 7716 3846 7701 3835 7696 3831 7691 3827 7698 3828 7698 3827 7699 3827 7700 3829 7701 3831 7703 3832 7703 3838 7706 3833 7717 3833 7726 TIME...MOT...LOC 2306Z 227DEG 22KT 3831 7712 HAIL...0.00IN WIND...>34KTS $$ Belak 213 WHUS51 KLWX 042320 SMWLWX ANZ535-536-050115- /O.NEW.KLWX.MA.W.0116.260704T2320Z-260705T0115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 720 PM EDT Sat Jul 4 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... * Until 915 PM EDT. * At 719 PM EDT, a gust front followed by strong thunderstorms were located along a line extending from 27 nm northwest of Key Bridge to 12 nm southwest of Aquia Creek, moving east at 45 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Potomac Creek, Widewater, Maryland Point, Leesylvania State Park, National Harbor, Smallwood State Park, Quantico, Fort Washington, Tidal Basin, Reagan National Airport, Gunston Hall, Mason Neck State Park, Woodrow Wilson Bridge, Indian Head, Occoquan Bay, Fort Hunt, Brent Point, Fairview Beach, and Alexandria. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3848 7733 3863 7724 3866 7724 3866 7719 3864 7719 3865 7716 3870 7719 3873 7706 3888 7707 3891 7705 3883 7700 3870 7700 3867 7708 3862 7709 3851 7724 3839 7723 3842 7714 3833 7723 3833 7729 3841 7733 TIME...MOT...LOC 2319Z 258DEG 46KT 3918 7754 3828 7754 HAIL...0.00IN WIND...>34KTS $$ Belak 895 WHUS51 KLWX 042335 SMWLWX ANZ530-050030- /O.NEW.KLWX.MA.W.0117.260704T2335Z-260705T0030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 735 PM EDT Sat Jul 4 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay north of Pooles Island MD... * Until 830 PM EDT. * At 735 PM EDT, a strong thunderstorm was located near Back River, moving northeast at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Northeast River, Turkey Point, Spesutie Island, Aberdeen Proving Ground, and Havre De Grace. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent 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 3959 7593 3949 7597 3954 7587 3945 7584 3946 7594 3940 7601 3937 7590 3936 7588 3937 7596 3936 7598 3937 7599 3937 7611 3935 7614 3933 7613 3933 7614 3940 7617 3945 7609 3949 7615 3954 7611 TIME...MOT...LOC 2335Z 224DEG 31KT 3925 7654 HAIL...0.00IN WIND...>34KTS $$ Belak 161 WHUS51 KOKX 042348 SMWOKX ANZ335-050115- /O.NEW.KOKX.MA.W.0047.260704T2348Z-260705T0115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service New York NY 748 PM EDT Sat Jul 4 2026 The National Weather Service in Upton NY has issued a * Special Marine Warning for... Long Island Sound West of New Haven CT / Port Jefferson NY... * Until 915 PM EDT. * At 747 PM EDT, strong thunderstorms were located along a line extending from 31 nm northwest of Captain Harbor to 23 nm northwest of Upper New York Harbor, moving east at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will be near... Captain Harbor around 840 PM EDT. Stamford Harbor around 845 PM EDT. Long Neck Point around 850 PM EDT. Norwalk Islands around 855 PM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until these storms pass. Wind gusts 34 knots or greater, high waves, lightning, and heavy rain are expected with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4094 7306 4090 7318 4085 7319 4092 7330 4085 7346 4089 7361 4079 7363 4079 7364 4084 7370 4075 7376 4090 7384 4103 7366 4106 7348 4113 7342 4110 7338 4119 7319 4117 7311 4127 7295 4131 7296 4131 7290 TIME...MOT...LOC 2347Z 270DEG 30KT 4144 7400 4101 7431 HAIL...0.00IN WIND...>34KTS $$ BJG