* WHAT. Up to one foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in Anne Arundel County. * WHEN. Until 4 AM EDT Friday, especially around the time of high tide. * IMPACTS. At 3.0 feet, Compromise Street begins to flood in Annapolis. Flooding of much of the City Dock parking lot is occurring. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tides at Annapolis U.S. Naval Academy are 6:03 AM and 6:46 PM.

* 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 4 AM EDT Friday, 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. Portions of the Swamp Trail on Roosevelt Island are flooded. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tides at Washington Channel are 9:15 AM and 9:31 PM.

* WHAT. Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in Calvert County. * WHEN. Until 1 AM EDT Friday, especially around the time of high tide. * IMPACTS. At 3.0 feet, water is expected to reach backyards near 9th Street in North Beach, and could approach 9th Street. At 3.0 feet, parking lots near Charles Street in Solomons begin to flood, with several inches of water covering low- lying portions of Charles Street and Williams Street. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tides at Solomons Island are 3:07 AM and 3:28 PM. The next high tides at Chesapeake Beach are 4:47 AM and 5:29 PM.

* WHAT. Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE. Shoreline in the City of Alexandria and Arlington County. * WHEN. Until 4 AM EDT Friday, especially around the time of high tide. * IMPACTS. Water is expected to approach the curb near the intersection of King Street and Strand Street in Alexandria. * ADDITIONAL DETAILS. Tides one and a half to two feet above normal. The next high tides at Alexandria are 9:16 PM and 9:33 AM.