Coastal Flood Warnings/Watches/Statements
Issued by NWS Boston, MA
Issued by NWS Boston, MA
Versions:
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WHUS41 KBOX 030729
CFWBOX
Coastal Hazard Message
National Weather Service Boston/Norton MA
229 AM EST Wed Dec 3 2025
MAZ007-015-016-019-022>024-031600-
/O.CON.KBOX.CF.S.0007.251203T1200Z-251203T1600Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
229 AM EST Wed Dec 3 2025
...COASTAL FLOOD STATEMENT REMAINS IN EFFECT FROM 7 AM TO 11 AM
EST THIS MORNING...
* WHAT...Up to one half foot of inundation above ground level
expected in low-lying areas near shorelines and tidal
waterways (2.7 to 12.7 feet Mean Lower Low Water).
* WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA,
Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA
Counties.
* WHEN...From 7 AM to 11 AM EST this morning.
* IMPACTS...Roads remain passable. Low lying areas and roads
near Nantucket Harbor, including Easy Street, may experience
pockets of shallow flooding less than one foot deep.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Do not drive through flooded roadways.
&&
&&
Time of high total tides are approximate to the nearest hour.
Gloucester Harbor
MLLW Categories - Minor 11.5 ft, Moderate 13.0 ft, Major 15.0 ft
MHHW Categories - Minor 1.9 ft, Moderate 3.4 ft, Major 5.4 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 11.0/11.5 1.4/ 1.9 0.4/ 0.9 5-6 None
03/10 PM 9.3/ 9.8 -0.3/ 0.2 0.2/ 0.7 3-4 None
04/10 AM 11.2/11.7 1.6/ 2.0 0.2/ 0.7 3 None
04/11 PM 8.5/ 9.0 -1.1/-0.7 -0.7/-0.2 4 None
05/11 AM 11.1/11.6 1.5/ 2.0 -0.2/ 0.2 2-3 None
05/11 PM 9.2/ 9.7 -0.5/ 0.0 0.0/ 0.5 2 None
Merrimack River near Newburyport MA
MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.5 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 4.0 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 9.9/10.4 0.4/ 0.9 0.4/ 0.9 4 None
03/10 PM 8.4/ 8.9 -1.1/-0.7 0.2/ 0.7 2-3 None
04/10 AM 10.1/10.6 0.6/ 1.1 0.2/ 0.7 2-3 None
04/11 PM 7.5/ 8.0 -2.0/-1.6 -0.8/-0.2 3 None
05/11 AM 9.9/10.4 0.4/ 0.9 -0.2/ 0.2 2 None
06/12 AM 8.2/ 8.7 -1.4/-0.9 0.0/ 0.5 2 None
Boston Harbor
MLLW Categories - Minor 12.5 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.2 ft, Moderate 3.7 ft, Major 4.7 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 12.1/12.6 1.8/ 2.2 0.6/ 1.1 2 None
03/10 PM 10.1/10.6 -0.2/ 0.2 0.2/ 0.7 1 None
04/10 AM 12.0/12.5 1.7/ 2.2 0.2/ 0.7 2 None
04/10 PM 9.3/ 9.8 -1.1/-0.6 -0.7/-0.2 2 None
05/11 AM 11.8/12.3 1.5/ 2.0 -0.2/ 0.2 1 None
05/11 PM 10.0/10.5 -0.3/ 0.2 0.0/ 0.5 1 None
Revere
MLLW Categories - Minor 12.5 ft, Moderate 14.5 ft, Major 16.0 ft
MHHW Categories - Minor 2.6 ft, Moderate 4.6 ft, Major 6.1 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 11.5/12.0 1.6/ 2.0 0.4/ 0.9 1-2 None
03/10 PM 9.7/10.2 -0.2/ 0.2 0.1/ 0.6 1 None
04/10 AM 11.6/12.1 1.7/ 2.2 0.1/ 0.6 1-2 None
04/11 PM 9.0/ 9.5 -1.0/-0.5 -0.9/-0.4 2 None
05/11 AM 11.5/12.0 1.6/ 2.0 -0.3/ 0.2 1 None
05/11 PM 9.8/10.3 -0.2/ 0.3 0.0/ 0.5 1 None
Green Harbor
MLLW Categories - Minor 11.5 ft, Moderate 13.5 ft, Major 15.5 ft
MHHW Categories - Minor 1.6 ft, Moderate 3.6 ft, Major 5.6 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 11.4/11.9 1.5/ 2.0 0.6/ 1.1 4 Minor
03/10 PM 9.5/10.0 -0.5/ 0.0 0.2/ 0.7 3 None
04/10 AM 11.5/12.0 1.6/ 2.0 0.2/ 0.7 2-3 Minor
04/11 PM 8.9/ 9.4 -1.1/-0.6 -0.6/-0.1 3 None
05/11 AM 11.3/11.8 1.4/ 1.9 -0.2/ 0.2 2 Minor
05/11 PM 9.4/ 9.9 -0.6/-0.1 0.1/ 0.6 1 None
Scituate MA
MLLW Categories - Minor 11.5 ft, Moderate 13.5 ft, Major 15.5 ft
MHHW Categories - Minor 1.8 ft, Moderate 3.8 ft, Major 5.8 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 11.4/11.9 1.7/ 2.2 0.6/ 1.1 4-5 Minor
03/10 PM 9.4/ 9.9 -0.3/ 0.2 0.2/ 0.7 3-4 None
04/10 AM 11.4/11.9 1.7/ 2.2 0.2/ 0.7 2-3 Minor
04/11 PM 8.7/ 9.2 -1.1/-0.6 -0.7/-0.2 3-4 None
05/11 AM 11.2/11.7 1.5/ 2.0 -0.2/ 0.2 2 None
05/11 PM 9.5/10.0 -0.2/ 0.2 0.2/ 0.7 1-2 None
Buzzards Bay at Woods Hole
MLLW Categories - Minor 5.5 ft, Moderate 7.0 ft, Major 8.5 ft
MHHW Categories - Minor 3.5 ft, Moderate 5.0 ft, Major 6.5 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/06 AM 3.0/ 3.5 1.0/ 1.5 0.2/ 0.7 3 None
03/07 PM 2.2/ 2.7 0.2/ 0.7 0.4/ 0.9 2 None
04/07 AM 2.8/ 3.4 0.9/ 1.4 0.0/ 0.5 2-3 None
04/07 PM 1.0/ 1.5 -1.1/-0.6 -0.9/-0.4 3-4 None
05/08 AM 2.7/ 3.2 0.8/ 1.3 -0.2/ 0.2 1-2 None
05/08 PM 1.7/ 2.2 -0.3/ 0.2 -0.2/ 0.3 1-2 None
Chatham MA - East Coast
MLLW Categories - Minor 9.0 ft, Moderate 11.5 ft, Major 13.0 ft
MHHW Categories - Minor 3.8 ft, Moderate 6.3 ft, Major 7.8 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/10 AM 6.9/ 7.4 1.7/ 2.2 0.6/ 1.1 5-6 None
03/10 PM 5.2/ 5.7 0.0/ 0.5 0.2/ 0.7 4 None
04/11 AM 6.6/ 7.1 1.4/ 1.9 0.1/ 0.6 3-4 None
04/11 PM 4.7/ 5.2 -0.5/ 0.0 -0.3/ 0.2 4-5 None
05/11 AM 6.4/ 6.9 1.2/ 1.7 -0.2/ 0.2 3 None
06/12 AM 5.2/ 5.7 0.1/ 0.6 0.1/ 0.6 2 None
Chatham - South side
MLLW Categories - Minor 9.0 ft, Moderate 10.5 ft, Major 11.5 ft
MHHW Categories - Minor 4.5 ft, Moderate 6.0 ft, Major 7.0 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/10 AM 5.7/ 6.2 1.3/ 1.8 0.8/ 1.3 4-5 None
03/11 PM 3.7/ 4.2 -0.8/-0.2 0.2/ 0.7 3 None
04/11 AM 5.4/ 5.9 0.9/ 1.4 0.2/ 0.7 3 None
05/12 AM 3.1/ 3.6 -1.5/-1.0 -0.7/-0.2 4 None
05/12 PM 5.1/ 5.6 0.6/ 1.1 -0.2/ 0.2 2-3 None
Hyannis Harbor
MLLW Categories - Minor 5.0 ft, Moderate 6.5 ft, Major 8.5 ft
MHHW Categories - Minor 1.2 ft, Moderate 2.7 ft, Major 4.7 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/10 AM 4.9/ 5.4 1.1/ 1.6 0.5/ 1.0 2-3 Minor
03/11 PM 3.2/ 3.7 -0.7/-0.2 0.1/ 0.6 2 None
04/11 AM 4.5/ 5.0 0.7/ 1.1 0.0/ 0.5 2-3 None
05/12 AM 2.2/ 2.7 -1.6/-1.1 -0.9/-0.4 3 None
05/12 PM 4.4/ 4.9 0.6/ 1.1 -0.2/ 0.2 2 None
06/12 AM 3.2/ 3.7 -0.7/-0.2 0.1/ 0.6 1 None
Provincetown Harbor
MLLW Categories - Minor 13.0 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.9 ft, Moderate 3.9 ft, Major 4.9 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 11.9/12.4 1.8/ 2.2 0.6/ 1.1 5-6 None
03/10 PM 10.0/10.5 -0.2/ 0.3 0.2/ 0.7 3-4 None
04/10 AM 11.8/12.3 1.7/ 2.2 0.2/ 0.7 3 None
04/11 PM 9.4/ 9.9 -0.8/-0.2 -0.5/ 0.0 5-6 None
05/11 AM 11.5/12.0 1.4/ 1.9 -0.2/ 0.2 3-4 None
05/11 PM 9.7/10.2 -0.5/ 0.0 0.1/ 0.6 2 None
Dennis - Sesuit Harbor
MLLW Categories - Minor 13.0 ft, Moderate 14.5 ft, Major 16.0 ft
MHHW Categories - Minor 2.5 ft, Moderate 4.0 ft, Major 5.5 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 12.5/13.0 2.0/ 2.5 0.8/ 1.3 3-4 None
03/10 PM 10.4/10.9 -0.2/ 0.3 0.2/ 0.7 2 None
04/10 AM 12.6/13.1 2.1/ 2.6 0.4/ 0.9 2-3 None
04/11 PM 10.3/10.8 -0.2/ 0.2 0.0/ 0.5 3-4 None
05/11 AM 12.2/12.7 1.7/ 2.2 -0.2/ 0.2 2 None
05/11 PM 10.5/11.0 0.0/ 0.5 0.2/ 0.7 1-2 None
Sandwich Harbor
MLLW Categories - Minor 12.0 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 1.7 ft, Moderate 3.7 ft, Major 4.7 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 10.8/11.3 0.5/ 1.0 0.8/ 1.3 3 None
03/09 PM 8.7/ 9.2 -1.7/-1.2 0.4/ 0.9 2 None
04/10 AM 10.7/11.2 0.4/ 0.9 0.2/ 0.8 2-3 None
04/10 PM 8.4/ 8.9 -2.0/-1.5 -0.2/ 0.2 3 None
05/11 AM 10.5/11.0 0.2/ 0.7 -0.2/ 0.3 2 None
05/11 PM 8.9/ 9.4 -1.5/-1.0 0.2/ 0.7 1 None
Wings Neck
MLLW Categories - Minor 6.5 ft, Moderate 9.0 ft, Major 11.5 ft
MHHW Categories - Minor 2.1 ft, Moderate 4.6 ft, Major 7.1 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/06 AM 4.9/ 5.4 0.5/ 1.0 -0.2/ 0.3 2-3 None
03/06 PM 4.0/ 4.5 -0.3/ 0.2 0.4/ 0.9 1 None
04/07 AM 5.2/ 5.7 0.8/ 1.3 0.0/ 0.5 1-2 None
04/07 PM 3.0/ 3.5 -1.5/-1.0 -0.9/-0.4 3 None
05/08 AM 4.9/ 5.4 0.5/ 1.0 -0.3/ 0.2 1-2 None
05/08 PM 3.7/ 4.2 -0.7/-0.2 -0.2/ 0.2 1 None
Edgartown
MLLW Categories - Minor 4.0 ft, Moderate 5.0 ft, Major 7.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 4.3 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 3.4/ 3.9 0.7/ 1.1 0.4/ 0.9 3-4 None
03/09 PM 2.0/ 2.5 -0.8/-0.2 0.2/ 0.8 2 None
04/09 AM 3.1/ 3.6 0.4/ 0.9 0.1/ 0.6 3 None
05/12 AM 1.2/ 1.7 -1.6/-1.1 -0.7/-0.2 3-4 None
05/11 AM 3.0/ 3.5 0.2/ 0.8 -0.2/ 0.3 2 None
06/12 AM 2.0/ 2.5 -0.8/-0.2 0.1/ 0.6 2 None
Vineyard Haven
MLLW Categories - Minor 4.5 ft, Moderate 6.0 ft, Major 7.0 ft
MHHW Categories - Minor 2.5 ft, Moderate 4.0 ft, Major 5.0 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/09 AM 2.5/ 3.0 0.5/ 1.0 0.4/ 0.9 3 None
03/08 PM 1.8/ 2.2 -0.2/ 0.2 0.6/ 1.1 2 None
04/09 AM 2.2/ 2.7 0.2/ 0.7 0.2/ 0.7 2-3 None
04/11 PM 0.7/ 1.1 -1.4/-0.9 -1.0/-0.5 3 None
05/11 AM 2.2/ 2.7 0.2/ 0.7 -0.2/ 0.3 1-2 None
05/11 PM 1.7/ 2.2 -0.3/ 0.2 0.2/ 0.7 1 None
Nantucket Harbor
MLLW Categories - Minor 5.0 ft, Moderate 6.5 ft, Major 8.0 ft
MHHW Categories - Minor 1.4 ft, Moderate 2.9 ft, Major 4.4 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
03/10 AM 4.7/ 5.2 1.2/ 1.7 0.6/ 1.1 5 Minor
03/11 PM 3.1/ 3.6 -0.6/-0.1 0.2/ 0.7 3 None
04/11 AM 4.4/ 4.9 0.8/ 1.3 0.1/ 0.6 4 None
05/12 AM 2.5/ 3.0 -1.1/-0.7 -0.5/ 0.0 4-5 None
05/12 PM 4.2/ 4.7 0.6/ 1.1 -0.2/ 0.2 2-3 None
&&
$$