Special Marine Warning

SMWLWX

The National Weather Service in Sterling Virginia has issued a

* Special Marine Warning for... Tidal Potomac from Indian Head to Cobb Island MD...

* Until 745 PM EDT.

* At 609 PM EDT, a strong thunderstorm was located 18 nm southwest of Potomac Creek, moving northeast at 20 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, Widewater, Mathias Point, U.S. 301 Nice Memorial Bridge, Maryland Point, Nanjemoy Creek, Port Tobacco River, Popes Creek, Brent Point, and Fairview Beach.