Special Marine Warning Issued for Tidal Potomac Areas
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NWS Baltimore MD/Washington DC has issued a Special Marine Warning for the Tidal Potomac from Indian Head to Cobb Island MD and from Cobb Island MD to Smith Point VA until 2:00 AM EDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Tidal Potomac, Maryland and Virginia
- Issued
- September 4, 2026
- Issuing authority
- NWS Baltimore MD/Washington DC
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
Special Marine Warning issued by NWS Baltimore MD/Washington DC. Effective from September 4, 2026 at 12:55 AM EDT until September 4, 2026 at 2:00 AM EDT. Alert type code: MA.W.
Affected Areas
Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA. Locations impacted include Yeocomico River, Breton Bay, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Maryland Point, Nanjemoy Creek, Port Tobacco River, Colonial Beach, Cobb Island, Point Lookout, Tall Timbers, Swan Point, Coltons Point, Mathias Point, U.S. 301 Nice Memorial Bridge, Saint George Island, Wicomico River, White Point Beach, and Popes Creek.
What You Should Do
Move to safe harbor until hazardous weather passes. Boaters in small craft should avoid the area as they could be thrown overboard by suddenly higher winds and waves capsizing their vessel.
Expected Conditions
Multiple areas of strong thunderstorms located along a line extending from Cuckold Creek to 8 nm south of Fairview Beach, moving southeast at 45 knots. Hazard: Wind gusts 34 knots or greater. Source: Radar indicated.
Timeline
Alert effective September 4, 2026 at 12:55 AM EDT. Expires and ends September 4, 2026 at 2:00 AM EDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,257 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 4, 2026.
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