...COASTAL FLOOD ADVISORY IN EFFECT FROM 7 AM TO 11 AM EDT WEDNESDAY...

* WHAT...Up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding.

* WHERE...Shoreline in the District of Columbia.

* WHEN...From 7 AM to 11 AM EDT Wednesday, 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 between one half foot and one foot above normal. The next high tide at Washington Channel is at 8:40 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.