Coastal Flood Warnings/Watches/Statements
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
013
WHUS41 KLWX 200619
CFWLWX
Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
219 AM EDT Wed Aug 20 2025
MDZ014-201200-
/O.CAN.KLWX.CF.W.0003.000000T0000Z-250820T1200Z/
/O.EXB.KLWX.CF.Y.0031.000000T0000Z-250820T1200Z/
Anne Arundel-
219 AM EDT Wed Aug 20 2025
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
...COASTAL FLOOD WARNING IS CANCELLED...
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 8 AM EDT this morning, especially around the time
of high tide.
* IMPACTS...At 3.0 feet, Compromise Street begins to flood in
Annapolis. Flooding of much of the City Dock parking lot is
occurring.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
3:55 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
-------- --------- --------- --------- ------- --------
20/04 AM 3.0 1.6 1.2 1.0 Minor
20/03 PM 2.5 1.1 1.3 1.0 None
21/04 AM 2.9 1.5 1.1 1.0 Minor
21/04 PM 1.8 0.4 0.5 1.0 None
22/06 AM 2.6 1.2 0.9 0.5 Minor
22/05 PM 2.8 1.4 1.4 0.5 Minor
&&
$$
MDZ016-VAZ057-200730-
/O.CAN.KLWX.CF.Y.0031.000000T0000Z-250820T0800Z/
Charles-King George-
219 AM EDT Wed Aug 20 2025
...COASTAL FLOOD ADVISORY IS CANCELLED...
In the wake of high tide, water levels have begun to drop.
$$
MDZ011-200730-
/O.CAN.KLWX.CF.Y.0031.250820T0700Z-250820T1300Z/
Southern Baltimore-
219 AM EDT Wed Aug 20 2025
...COASTAL FLOOD ADVISORY IS CANCELLED...
Water levels are remaining lower than initially forecast. Tidal
flooding is no longer expected.
$$
MDZ018-201430-
/O.CON.KLWX.CF.Y.0031.000000T0000Z-250820T1800Z/
Calvert-
219 AM EDT Wed Aug 20 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Calvert County.
* WHEN...Until 2 PM EDT this afternoon, especially around the
time of high tide.
* IMPACTS...At 3.0 feet, water is expected to reach backyards
near 9th Street in North Beach, and could approach 9th Street.
At 3.0 feet, parking lots near Charles Street in Solomons
begin to flood, with several inches of water covering low-
lying portions of Charles Street and Williams Street.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Solomons Island is at 12:23 PM.
The next high tide at Chesapeake Beach is at 2:17 AM and 2:12
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.
&&
Time of high total tides are approximate to the nearest hour.
Chesapeake Bay at North Beach
MLLW Categories - Minor 3.0 ft, Moderate 4.0 ft, Major 5.0 ft
MHHW Categories - Minor 1.6 ft, Moderate 2.6 ft, Major 3.6 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/03 AM 3.0 1.6 1.1 1.0 Minor
20/02 PM 2.4 1.0 1.1 0.5 None
21/04 AM 3.0 1.6 1.1 1.0 Minor
21/04 PM 2.1 0.7 0.7 0.5 None
22/05 AM 2.8 1.4 1.0 0.5 None
22/05 PM 3.1 1.7 1.6 0.5 Minor
Patuxent River at Solomons Island
MLLW Categories - Minor 3.0 ft, Moderate 4.0 ft, Major 5.0 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/12 PM 3.1 1.6 1.6 1.0 Minor
21/12 AM 2.8 1.3 1.2 1.0 None
21/12 PM 2.3 0.8 0.8 1.0 None
22/02 AM 2.5 1.0 0.8 1.0 None
22/02 PM 3.1 1.6 1.5 1.0 Minor
&&
$$