Coastal Flood Warnings/Watches/Statements
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
724
WHUS41 KLWX 241340
CFWLWX
Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
940 AM EDT Sun Aug 24 2025
MDZ011-018-241445-
/O.CAN.KLWX.CF.Y.0033.000000T0000Z-250825T1000Z/
Southern Baltimore-Calvert-
940 AM EDT Sun Aug 24 2025
...COASTAL FLOOD ADVISORY IS CANCELLED...
Water levels have receded.
$$
MDZ508-242145-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250825T1000Z/
Southeast Harford-
940 AM EDT Sun Aug 24 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
MONDAY...
* WHAT...Up to two feet of inundation above ground level in low
lying areas due to tidal flooding.
* WHERE...Shoreline in Southeast Harford County.
* WHEN...Until 6 AM EDT Monday, especially around the time of
high tide.
* IMPACTS...At 4.0 feet, water begins to go over the bulkhead at
the Havre de Grace Yacht Basin in multiple locations.
* ADDITIONAL DETAILS...Tides two to two and a half feet above
normal. The next high tide at Havre de Grace is at 11:10 AM and
11:41 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
Time of high total tides are approximate to the nearest hour.
Chesapeake Bay at Havre de Grace MD
MLLW Categories - Minor 4.0 ft, Moderate 5.5 ft, Major 7.0 ft
MHHW Categories - Minor 2.2 ft, Moderate 3.7 ft, Major 5.2 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
24/10 AM 4.2 1.8 2.0 1.0 Minor
24/11 PM 3.8 1.4 1.3 1.0 None
25/12 PM 3.8 1.4 1.4 1.0 None
26/12 AM 3.7 1.3 1.1 1.0 None
26/01 PM 3.2 0.8 0.8 1.0 None
27/01 AM 3.2 0.8 0.6 1.0 None
&&
$$
MDZ016-VAZ057-242145-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250824T2300Z/
Charles-King George-
940 AM EDT Sun Aug 24 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...
* WHAT...Around one and a half feet of inundation above ground
level in low lying areas due to tidal flooding.
* WHERE...Shoreline in Charles and King George Counties.
* WHEN...Until 7 PM EDT this evening, especially around the time
of high tide.
* IMPACTS...At 3.5 feet, water reaches yards near Cobb Island
and docks near Dahlgren.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Goose Bay is at 5:46 PM and 6:02
AM. The next high tide at Indian Head is at 9:40 PM and 9:56 AM.
The next high tide at Dahlgren is at 4:41 PM and 4:58 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.
&&
Time of high total tides are approximate to the nearest hour.
Upper Machodoc Creek at Dahlgren
MLLW Categories - Minor 3.5 ft, Moderate 5.0 ft, Major 7.0 ft
MHHW Categories - Minor 1.6 ft, Moderate 3.1 ft, Major 5.1 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
24/05 PM 3.6 1.7 1.5 1.0 Minor
25/05 AM 3.5 1.6 1.4 0.5 Minor
25/05 PM 3.3 1.4 1.2 0.5 None
26/05 AM 3.1 1.2 1.1 0.5 None
26/06 PM 3.0 1.1 0.9 0.5 None
27/06 AM 2.8 0.9 0.8 0.5 None
&&
$$
VAZ054-242145-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250824T2300Z/
Arlington/Falls Church/Alexandria-
940 AM EDT Sun Aug 24 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...
* WHAT...Around one and a half feet of inundation above ground
level in low lying areas due to tidal flooding.
* WHERE...Shoreline in the City of Alexandria and Arlington
County.
* WHEN...Until 7 PM EDT this evening, especially around the time
of high tide.
* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Alexandria is at 9:45 AM and 10:12
PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
$$
MDZ014-242145-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250825T1000Z/
Anne Arundel-
940 AM EDT Sun Aug 24 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
MONDAY...
* WHAT...Around 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 6 AM 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
7:02 PM and 7:19 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.
&&
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
-------- --------- --------- --------- ------- --------
24/06 PM 2.8 1.4 1.4 1.0 Minor
25/07 AM 2.9 1.5 1.3 0.5 Minor
25/07 PM 2.6 1.2 1.1 0.5 Minor
26/08 AM 2.3 0.9 0.8 0.5 None
26/08 PM 2.3 0.9 0.7 0.5 None
&&
$$