Coastal Flood Advisory
Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
820 PM EDT Sun Sep 21 2025
VAZ054-220200-
/O.CON.KLWX.CF.Y.0048.000000T0000Z-250922T0200Z/
Arlington/Falls Church/Alexandria-
820 PM EDT Sun Sep 21 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
* WHAT...Up to one 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 10 PM EDT this evening, especially around the
time of high tide.
* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Alexandria is at 9:07 PM and 9:25
AM.
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.
&&
$$
Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
820 PM EDT Sun Sep 21 2025
MDZ014-220830-
/O.EXT.KLWX.CF.Y.0048.000000T0000Z-250923T0100Z/
Anne Arundel-
820 PM EDT Sun Sep 21 2025
...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 9 PM EDT MONDAY...
* WHAT...Up to one and a half feet of inundation above ground
level in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 9 PM EDT Monday, especially around the time of
high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
6:10 AM and 6:43 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
Time of high total tides are approximate to the nearest hour.
Severn River at Annapolis
MLLW Categories - Minor 2.6 ft, Moderate 3.3 ft, Major 5.0 ft
MHHW Categories - Minor 1.2 ft, Moderate 1.9 ft, Major 3.6 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
22/05 AM 2.7 1.3 1.2 0.5 Minor
22/06 PM 2.8 1.4 1.2 0.5 Minor
23/06 AM 2.5 1.1 1.0 0.5 None
23/07 PM 2.6 1.2 1.0 1.0 Minor
24/06 AM 2.3 0.9 0.9 0.5 None
&&
$$
