Active Weather Alerts
Special Marine Warning
Issued: 1:36 AM Jul. 22, 2026 – National Weather Service
The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Cobb Island MD to Smith Point VA... Tidal Potomac from Indian Head to Cobb Island MD... Tidal Potomac from Key Bridge to Indian Head MD... * Until 1130 PM EDT. * At 936 PM EDT, strong thunderstorms were located along a line extending from 18 nm northwest of Mason Neck State Park to 9 nm west of Quantico to 21 nm west 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... Yeocomico River, Potomac Creek, Breton Bay, Nanjemoy Creek, Smallwood State Park, Quantico, Tidal Basin, Reagan National Airport, Swan Point, Coltons Point, Saint George Island, Occoquan Bay, Popes Creek, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Maryland Point, Port Tobacco River, Colonial Beach, and Leesylvania State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && HAIL...0.00IN; WIND...>34KTS
Small Craft Advisory
Issued: 9:05 PM Jul. 21, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT WEDNESDAY... * WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt. * WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD. * WHEN...Until 4 AM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
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