Coastal Flood Warnings/Watches/Statements
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
815
WHUS41 KLWX 200811
CFWLWX
Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
411 AM EDT Fri Sep 20 2024
MDZ014-201615-
/O.CON.KLWX.CF.Y.0108.000000T0000Z-240921T2200Z/
/O.CON.KLWX.CF.A.0014.240921T2200Z-240922T0500Z/
Anne Arundel-
411 AM EDT Fri Sep 20 2024
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT
SATURDAY...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM SATURDAY EVENING
THROUGH LATE SATURDAY NIGHT...
* WHAT...For the Coastal Flood Advisory, up to one half foot of
inundation above ground level in low lying areas due to tidal
flooding. For the Coastal Flood Watch, up to one foot of
inundation above ground level possible in low lying areas due
to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, until 6 PM EDT
Saturday, especially around the time of high tide. For the
Coastal Flood Watch, from Saturday evening through late
Saturday night, especially around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches the floor of the Maritime
Museum in Annapolis, begins to cover Bowyer Road on the Naval
Academy campus, and numerous businesses on Dock Street are
flooded, along with the City Dock parking lot. Bayside Beach
begins to flood around Harbor Rd and Lake Dr.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tides at Annapolis U.S. Naval Academy are
7:09 AM and 8:10 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
-------- --------- --------- --------- ------- --------
20/07 AM 2.8 1.4 1.4 0.5 Minor
20/08 PM 3.0 1.6 1.2 1.0 Minor
21/08 AM 2.9 1.5 1.6 1.0 Minor
21/09 PM 3.5 2.1 1.7 1.0 Moderate
22/08 AM 3.2 1.8 2.0 1.0 Minor
22/10 PM 3.6 2.2 1.8 1.0 Moderate
&&
$$
MDZ016-VAZ057-201615-
/O.CON.KLWX.CF.Y.0107.000000T0000Z-240922T1200Z/
Charles-King George-
411 AM EDT Fri Sep 20 2024
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT
SUNDAY...
* WHAT...Up to one foot of inundation above ground level in low
lying areas due to tidal flooding.
* WHERE...Shoreline in Charles and King George Counties.
* WHEN...Until 8 AM EDT Sunday, especially around the time of
high tide.
* IMPACTS...At 3.5 feet, water reaches yards near Cobb Island
and docks near Dahlgren.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tides at Indian Head are 10:03 AM and
10:20 PM. The next high tides at Goose Bay are 6:09 AM and 6:26
PM. The next high tides at Dahlgren are 4:59 AM and 5:25 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.
&&
Time of high total tides are approximate to the nearest hour.
Upper Machodoc Creek at Dahlgren
MLLW Categories - Minor 3.5 ft, Moderate 5.0 ft, Major 7.0 ft
MHHW Categories - Minor 1.6 ft, Moderate 3.1 ft, Major 5.1 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/05 AM 3.6 1.7 1.4 0.5 Minor
20/05 PM 3.8 1.9 1.4 0.5 Minor
21/06 AM 3.7 1.8 1.6 0.5 Minor
21/06 PM 4.1 2.2 1.8 1.0 Minor
22/06 AM 3.9 2.0 2.0 0.5 Minor
22/06 PM 4.3 2.4 2.2 0.5 Minor
&&
$$
DCZ001-VAZ054-201615-
/O.CON.KLWX.CF.Y.0107.000000T0000Z-240922T0600Z/
District of Columbia-Arlington/Falls Church/Alexandria-
411 AM EDT Fri Sep 20 2024
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
SUNDAY...
* WHAT...One to two feet of inundation above ground level in low
lying areas due to tidal flooding.
* WHERE...Shoreline in the District of Columbia, Arlington
County, and the City of Alexandria.
* WHEN...Until 2 AM EDT Sunday, 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. Water is expected to approach the
curb near the intersection of King Street and Strand Street in
Alexandria.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tides at Alexandria are 10:35 AM and 10:52
PM. The next high tides at Washington Channel are 10:17 AM and
10:34 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.
&&
$$
MDZ017-018-201615-
/O.CON.KLWX.CF.Y.0107.000000T0000Z-240922T1500Z/
St. Marys-Calvert-
411 AM EDT Fri Sep 20 2024
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT
SUNDAY...
* WHAT...Up to one foot of inundation above ground level in low
lying areas due to tidal flooding.
* WHERE...St. Marys and Calvert Counties.
* WHEN...Until 11 AM EDT Sunday, 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 3.5 feet, water covers roads on Saint George Island, is in
yards, and is approaching structures. To the east, inundation
is occurring at multiple marinas off St. Mary`s River, Smith
Creek, and Jutland Creek. At 3.5 feet, yards are flooded near
Charles Street and Williams Street in Solomons. Nearby parking
lots and the streets themselves are covered by more than a
half foot of water.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tides at Solomons Island are 4:06 AM and
4:42 PM. The next high tides at Chesapeake Beach are 5:54 AM and
6:43 PM. The next high tides at Coltons Point are 4:59 AM and
5:16 PM. The next high tides at Point Lookout are 4:02 PM and
3:58 AM. The next high tides at Piney Point are 4:23 AM and 4:40
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.
St Marys River at Straits Point
MLLW Categories - Minor 3.0 ft, Moderate 3.5 ft, Major 5.0 ft
MHHW Categories - Minor 1.4 ft, Moderate 1.9 ft, Major 3.4 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/04 AM 3.3 1.7 1.6 0.5 None
20/05 PM 3.5 1.9 1.6 1.0 Minor
21/05 AM 3.4 1.8 1.8 1.0 None
21/05 PM 3.6 2.0 1.8 1.0 Minor
22/05 AM 3.3 1.7 1.8 1.0 None
22/06 PM 3.8 2.2 2.0 1.0 Minor
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
-------- --------- --------- --------- ------- --------
20/05 AM 2.6 1.2 1.2 0.5 None
20/07 PM 3.1 1.7 1.3 1.0 Minor
21/06 AM 2.8 1.4 1.5 1.0 None
21/08 PM 3.6 2.2 1.7 1.0 Minor
22/07 AM 3.1 1.7 1.9 1.0 Minor
22/09 PM 3.7 2.3 1.8 1.0 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
-------- --------- --------- --------- ------- --------
20/04 AM 3.1 1.6 1.3 1.0 Minor
20/05 PM 3.2 1.7 1.3 1.0 Minor
21/05 AM 3.2 1.7 1.5 1.0 Minor
21/05 PM 3.5 2.0 1.7 1.0 Minor
22/05 AM 3.5 2.0 1.9 1.0 Minor
22/07 PM 3.7 2.2 1.9 1.0 Minor
&&
$$