* WHAT. Dense fog will reduce visibility to 1/2 NM or less. * WHERE. Coastal waters from Manasquan Inlet to to Cape May NJ out 20 nm. * WHEN. Until 8 AM EDT Monday. * IMPACTS. Low visibility will make navigation difficult. * ADDITIONAL DETAILS. The fog is occuring in a very narrow corridor near the shore. There may be some brief clearing, but expect more widespread fog to develop tonight. The southern end of this fog bank, generally south of Ocean City New Jersey is transient and much narrower.

* WHAT. Dense fog will reduce visibility to 1/2 NM or less. * WHERE. Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm and Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm. * WHEN. Until 8 AM EDT Monday. * IMPACTS. Low visibility will make navigation difficult.

* WHAT. Dense fog will reduce visibility to 1/2 NM or less. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm and Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm. * WHEN. Until 8 AM EDT Monday. * IMPACTS. Low visibility will make navigation difficult.

Scattered thunderstorms are developing over portions of Delmarva and interior southern southern New Jersey at this hour. Some of these storms could produce strong winds up to 50 mph in addition to heavy downpours leading to the threat of localized flooding. The threat for storms will continue through this afternoon with further storm development possible farther north over southeastern PA. Scattered storms will quickly diminish early this evening.

* WHAT. Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE. Coastal Dorchester County, especially in the area of Bishops Head. * WHEN. From 3 AM to 7 AM EDT Monday. * IMPACTS. Shallow flooding is expected in the most vulnerable locations near the waterfront and shoreline resulting in a low threat of property damage. Expect up to one foot of water above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks and lawns near the waterfront will experience shallow flooding.

* WHAT. South winds 10 to 15 kt with gusts up to 25 kt expected. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of Pooles Island MD, Patapsco River including Baltimore Harbor, and Patuxent River to Broomes Island MD. * WHEN. From 6 AM to 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE. Chesapeake Bay from Pooles Island MD to Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, 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. From 8 PM this evening to 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for. West Central Sussex County in southern Delaware. * Until 815 PM EDT. * At 511 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD. Flash flooding caused by thunderstorms. SOURCE. Radar and automated gauges. IMPACT. Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. * Some locations that may experience flash flooding include. Bridgeville and Greenwood.