...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* 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, Arlington County, and the City of Alexandria.

* WHEN...Until 9 AM EDT this morning, 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 to one and a half feet above normal. The next high tide at Washington Channel is at 6:09 AM. The next high tide at Alexandria is at 6:27 AM.

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.