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Special Marine Warning

Tidal Potomac from Key Bridge to Indian Head MD; Tidal Potomac from Indian Head to Cobb Island MD

Special Marine Warning issued August 2 at 3:17PM EDT until August 2 at 5:15PM EDT by NWS Baltimore MD/Washington DC

Alert Description

SMWLWX 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 515 PM EDT. * At 317 PM EDT, a strong thunderstorm was located near Fairview Beach, moving north 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... Potomac Creek, Maryland Point, Nanjemoy Creek, Port Tobacco River, Colonial Beach, Leesylvania State Park, Smallwood State Park, Quantico, 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, and Fairview Beach.

Safety Instructions

Move to safe harbor until hazardous weather passes.

Time Information

Effective
Aug 2, 2026, 7:17 PM
Expires
Aug 2, 2026, 9:15 PM
Issued
Aug 2, 2026, 7:17 PM

Alert Details

Severity
Severe
Urgency
Immediate
Certainty
Likely
Category
Met

Issued By

NWS Baltimore MD/Washington DC
National Weather Service

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