156 WHUS51 KLWX 222114 SMWLWX ANZ535-222215- /O.NEW.KLWX.MA.W.0100.260622T2114Z-260622T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 514 PM EDT Mon Jun 22 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Key Bridge to Indian Head MD... * Until 615 PM EDT. * At 514 PM EDT, severe thunderstorms were located along a line extending from near Key Bridge to 9 nm west of Alexandria, moving northeast at 20 knots. HAZARD...Wind gusts in excess of 48 knots and large hail. SOURCE...Radar indicated. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds and hail. * Locations impacted include... Tidal Basin, Key Bridge, Reagan National Airport, 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 3891 7705 3885 7700 3881 7700 3880 7707 3890 7708 TIME...MOT...LOC 2114Z 246DEG 19KT 3892 7719 3880 7729 HAIL...>.75IN WIND...48KTS $$ CJL 584 WHUS51 KLWX 222124 SMWLWX ANZ535-536-222300- /O.NEW.KLWX.MA.W.0101.260622T2124Z-260622T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 524 PM EDT Mon Jun 22 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... * Until 700 PM EDT. * At 524 PM EDT, severe thunderstorms were located along a line extending from 28 nm west of Quantico to 26 nm west of Aquia Creek to 38 nm west of Brent Point, moving east at 40 knots. HAZARD...Wind gusts in excess of 48 knots. SOURCE...Radar indicated. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds. * Locations impacted include... Potomac Creek, Maryland Point, Nanjemoy Creek, Port Tobacco River, Colonial Beach, Leesylvania State Park, National Harbor, Fort Washington, Swan Point, Gunston Hall, Mathias Point, U.S. 301 Nice Memorial Bridge, Mason Neck State Park, Woodrow Wilson Bridge, Indian Head, Occoquan Bay, Fort Hunt, Popes Creek, Brent Point, and Quantico. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3866 7724 3864 7719 3870 7720 3873 7706 3880 7707 3881 7700 3870 7700 3867 7708 3851 7724 3839 7723 3846 7701 3835 7696 3828 7685 3817 7685 3817 7686 3821 7695 3835 7704 3833 7729 3841 7733 TIME...MOT...LOC 2124Z 273DEG 41KT 3867 7788 3851 7788 3820 7808 HAIL...0.00IN WIND...48KTS $$ CJL 065 WHUS51 KLWX 222127 SMWLWX ANZ530-531-222300- /O.NEW.KLWX.MA.W.0102.260622T2127Z-260622T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 527 PM EDT Mon Jun 22 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay from Pooles Island to Sandy Point MD... Chesapeake Bay north of Pooles Island MD... * Until 700 PM EDT. * At 527 PM EDT, a severe thunderstorm was located over Bodkin Point, moving northeast at 25 knots. HAZARD...Wind gusts in excess of 48 knots. SOURCE...Radar indicated. IMPACT...Boaters could easily be thrown overboard by suddenly higher wind and waves capsizing their vessel. Boats could suffer significant damage in high winds. * Locations impacted include... Turkey Point, Gunpowder River, Northeast River, Worton Point, Pooles Island, Spesutie Island, Tolchester Beach, Aberdeen Proving Ground, Havre De Grace, and Middle River. 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 3936 7588 3936 7589 3937 7611 3921 7625 3928 7641 3940 7637 3946 7630 3948 7622 3937 7622 3945 7609 3949 7615 3954 7611 3960 7595 TIME...MOT...LOC 2127Z 227DEG 26KT 3912 7648 HAIL...0.00IN WIND...48KTS $$ CJL 835 WHUS51 KLWX 222129 SMWLWX ANZ531-532-539>541-222300- /O.NEW.KLWX.MA.W.0103.260622T2129Z-260622T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 529 PM EDT Mon Jun 22 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay from Pooles Island to Sandy Point MD... Chesapeake Bay from Sandy Point to North Beach MD... Chester River to Queenstown MD... Choptank River to Cambridge MD and the Little Choptank River... Eastern Bay... * Until 700 PM EDT. * At 529 PM EDT, a strong thunderstorm was located near Shady Side, moving east at 20 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Parsons Island, Kent Narrows Bridge, Chester River, Eastern Bay, Greenbury Point, Miles River, Love Point, Herring Bay, Sandy Point State Park, Highland Beach, Severn River, Romancoke, Bloody Point Light, Matapeake, Chesapeake Bay Bridge, Thomas Point Light, Poplar Island, Shady Side, Naval Academy, and Mayo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 3897 7620 3897 7625 3894 7623 3894 7621 3879 7619 3878 7622 3875 7622 3875 7624 3881 7621 3885 7627 3883 7630 3875 7634 3873 7654 3898 7648 3902 7641 3904 7644 3905 7643 3907 7623 3903 7624 3900 7617 TIME...MOT...LOC 2129Z 261DEG 18KT 3885 7660 HAIL...<.75IN WIND...>34KTS $$ CJL