* WHAT. Southwest winds 10 kt with gusts up to 20 kt. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD, and Patuxent River to Broomes Island MD. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 kt with gusts up to 20 kt. * WHERE. Chesapeake Bay main channel north of Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD, Eastern Bay, Choptank River to Cambridge MD and the Little Choptank River, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

TORLWX The National Weather Service in Sterling Virginia has issued a * Tornado Warning for. North central Montgomery County in central Maryland. Southeastern Frederick County in north central Maryland. * Until 215 PM EDT. * At 147 PM EDT, a severe thunderstorm capable of producing a tornado was located near Ballenger Creek, or near Harry Grove Stadium, moving east at 25 mph. HAZARD. Tornado. SOURCE. Radar indicated rotation. IMPACT. For those in the direct path of a tornado touchdown, flying debris will be dangerous to those caught without shelter. Damage to roofs, siding, and windows may occur. Mobile homes may be damaged or destroyed. Tree damage is likely. * This dangerous storm will be near. Damascus and Green Valley around 155 PM EDT. Other locations impacted by this tornadic thunderstorm include Monrovia and Ijamsville.