* WHAT. Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in the District of Columbia. * WHEN. Until 8 AM EDT Saturday, especially around the time of high tide. * IMPACTS. Shoreline inundation is expected along portions of the seawall adjacent to Ohio Drive and the Hains Point Loop Road, and near the Tidal Basin and Jefferson Memorial.. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tide at Washington Channel is at 5:14 AM and 5:44 PM.

* WHAT. Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in Charles and King George Counties. * WHEN. Until 2 AM EDT Saturday, especially around the time of high tide. * IMPACTS. At 3.5 feet, water reaches yards near Cobb Island and docks near Dahlgren. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tide at Goose Bay is at 1:06 AM and 1:36 PM. The next high tide at Indian Head is at 5:00 AM and 5:30 PM. The next high tide at Dahlgren is at 12:00 AM and 12:23 PM.

* WHAT. For the Coastal Flood Advisory, up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding. For the Coastal Flood Watch, up to one foot of inundation above ground level possible in low lying areas due to tidal flooding. * WHERE. Shoreline in Anne Arundel County. * WHEN. For the Coastal Flood Advisory, until 5 PM EDT Saturday, especially around the time of high tide. For the Coastal Flood Watch, from late Saturday night through Sunday morning, especially around the time of high tide. * IMPACTS. At 3.2 feet, water begins to approach businesses on Dock Street in Annapolis. The City Dock parking lot is flooded. Compromise Street is flooded. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 2:35 AM and 2:47 PM.

* WHAT. East winds around 10 kt with gusts up to 20 kt. * WHERE. Tidal Potomac from Key Bridge to Indian Head MD. * WHEN. Until midnight EDT tonight. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. East winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay and adjoining estuaries north of Smith Point VA, and Tidal Potomac from Cobb Island MD to Smith Point VA. * WHEN. Until 6 AM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. East winds 10 to 15 with gusts up to 20 kt. * WHERE. Tidal Potomac from Indian Head to Cobb Island MD. * WHEN. For the first Small Craft Advisory, until midnight EDT tonight. For the second Small Craft Advisory, from 6 PM Saturday to 6 AM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.