One product issued by NWS for:
Coastal Flood Watch
Coastal Hazard Message National Weather Service Baltimore MD/Washington DC 517 AM EDT Fri Sep 22 2023 DCZ001-VAZ053>055-527-221730- /O.CON.KLWX.CF.A.0006.230924T0400Z-230924T0900Z/ District of Columbia-Fairfax-Arlington/Falls Church/Alexandria- Stafford- Central and Southeast Prince William/Manassas/Manassas Park- 517 AM EDT Fri Sep 22 2023 ...COASTAL FLOOD WATCH REMAINS IN EFFECT LATE SATURDAY NIGHT... * WHAT...One to two feet of inundation above ground level possible in low lying areas due to tidal flooding. * WHERE...In District of Columbia, District of Columbia. In Virginia, Fairfax, Stafford and Central and Southeast Prince William/Manassas/Manassas Park Counties, and Arlington/Falls Church/Alexandria. * WHEN...Late Saturday night, especially around the time of high tide. * IMPACTS...Numerous roads may be closed. Low lying property including homes, businesses, and some critical infrastructure may be inundated. Some shoreline erosion may occur. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The worst flooding will occur with the Saturday morning and Saturday evening high tides. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$