580 WHUS51 KLWX 121929 SMWLWX ANZ535-536-122130- /O.NEW.KLWX.MA.W.0077.260612T1929Z-260612T2130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 329 PM EDT Fri Jun 12 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 530 PM EDT. * At 329 PM EDT, a strong thunderstorm was located 31 nm west of Quantico, moving east at 25 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, Maryland Point, Nanjemoy Creek, Port Tobacco River, Colonial Beach, Leesylvania State Park, Swan Point, Gunston Hall, Mathias Point, U.S. 301 Nice Memorial Bridge, Mason Neck State Park, Woodrow Wilson Bridge, Indian Head, Occoquan Bay, Fort Hunt, Popes Creek, Brent Point, Reagan National Airport, Quantico, and Westmoreland State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 3866 7724 3864 7719 3870 7720 3873 7706 3891 7705 3890 7705 3870 7700 3867 7708 3851 7724 3839 7723 3846 7701 3829 7687 3817 7685 3817 7686 3821 7695 3835 7704 3833 7729 3841 7733 TIME...MOT...LOC 1929Z 260DEG 26KT 3860 7796 HAIL...0.00IN WIND...>34KTS $$ LFR