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Marine Coastal Hazard Message - Issued When Needed
Check the date
Expires:202602021900;Remove:202602021900;944650
WHUS41 KBOX 020448
CFWBOX
Coastal Hazard Message
National Weather Service Boston/Norton MA
1148 PM EST Sun Feb 1 2026
MAZ007-015-016-019-022>024-021900-
/O.CON.KBOX.CF.Y.0001.000000T0000Z-260202T1900Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
1148 PM EST Sun Feb 1 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM EST
MONDAY...
* WHAT...Up to one foot of inundation above ground level in low-
lying areas near shorelines and tidal waterways (4.0 to 13.0
feet Mean Lower Low Water).
* WHERE...The eastern Massachusetts coastline.
* WHEN...Until 2 PM EST Monday.
* IMPACTS...Roads remain passable. Shallow pockets of flooding
less than one foot deep affect more vulnerable coastal roads
along the North Shore from Salem and Gloucester to
Newburyport. Rough surf will likely cause some splashover onto
coastal roads around the time of high tide. 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.
* ADDITIONAL DETAILS...Sub-freezing temperatures and very cold
road surfaces could allow storm surge to freeze, prolonging
impacts and delaying drainage even after high tide.
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.
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
-------- --------- --------- --------- ------- --------
01/11 PM 10.7/11.2 1.1/ 1.6 1.8/ 2.2 7-8 None
02/11 AM 11.6/12.1 2.0/ 2.5 1.2/ 1.7 6-7 Minor
03/12 AM 9.6/10.1 0.0/ 0.5 0.5/ 1.0 4 None
03/12 PM 10.4/10.9 0.8/ 1.3 0.1/ 0.6 2-3 None
04/01 AM 9.3/ 9.8 -0.3/ 0.2 0.1/ 0.6 2 None
04/01 PM 10.0/10.5 0.4/ 0.9 0.1/ 0.6 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
-------- --------- --------- --------- ------- --------
01/11 PM 9.8/10.3 0.2/ 0.8 1.8/ 2.2 5 None
02/11 AM 10.4/10.9 0.9/ 1.4 1.2/ 1.7 4 None
03/12 AM 8.7/ 9.2 -0.9/-0.4 0.5/ 1.0 3 None
03/12 PM 9.3/ 9.8 -0.2/ 0.2 0.1/ 0.6 2 None
04/01 AM 8.4/ 8.9 -1.1/-0.7 0.1/ 0.6 1 None
04/01 PM 9.1/ 9.6 -0.5/ 0.0 0.1/ 0.6 1-2 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
-------- --------- --------- --------- ------- --------
01/11 PM 11.3/11.8 1.0/ 1.5 1.7/ 2.2 2 None
02/11 AM 12.1/12.6 1.8/ 2.2 1.1/ 1.6 1-2 None
03/12 AM 10.3/10.8 0.0/ 0.5 0.5/ 1.0 1 None
03/12 PM 11.0/11.5 0.7/ 1.1 0.1/ 0.6 1 None
04/01 AM 10.0/10.5 -0.3/ 0.2 0.1/ 0.6 1 None
04/01 PM 10.6/11.1 0.2/ 0.8 0.0/ 0.5 1-2 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
-------- --------- --------- --------- ------- --------
01/11 PM 11.3/11.8 1.4/ 1.9 1.7/ 2.2 2 None
02/11 AM 12.0/12.5 2.1/ 2.6 1.1/ 1.6 1 None
03/12 AM 10.2/10.7 0.2/ 0.8 0.4/ 0.9 1 None
03/12 PM 11.0/11.5 1.1/ 1.6 0.1/ 0.6 1 None
04/01 AM 9.9/10.4 0.0/ 0.5 0.0/ 0.5 1 None
04/01 PM 10.6/11.1 0.7/ 1.1 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
-------- --------- --------- --------- ------- --------
01/11 PM 11.1/11.6 1.2/ 1.7 1.9/ 2.3 6 None
02/11 AM 12.0/12.5 2.1/ 2.6 1.3/ 1.8 5-6 Minor
03/12 AM 10.1/10.6 0.2/ 0.7 0.6/ 1.1 3 None
03/12 PM 10.8/11.3 0.9/ 1.4 0.2/ 0.7 2 None
04/01 AM 9.7/10.2 -0.2/ 0.2 0.1/ 0.6 1-2 None
04/01 PM 10.4/10.9 0.5/ 1.0 0.1/ 0.6 1-2 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
-------- --------- --------- --------- ------- --------
01/11 PM 11.2/11.7 1.5/ 2.0 1.9/ 2.3 7 None
02/11 AM 11.9/12.4 2.2/ 2.7 1.2/ 1.7 6 Minor
03/12 AM 10.0/10.5 0.2/ 0.8 0.5/ 1.0 3-4 None
03/12 PM 10.7/11.2 1.0/ 1.5 0.1/ 0.6 2-3 None
04/01 AM 9.7/10.2 0.0/ 0.5 0.1/ 0.6 2 None
04/01 PM 10.4/10.9 0.7/ 1.1 0.1/ 0.6 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
-------- --------- --------- --------- ------- --------
02/08 AM 3.9/ 4.4 1.9/ 2.3 1.4/ 1.9 3 None
02/08 PM 2.3/ 2.8 0.4/ 0.9 0.6/ 1.1 2 None
03/09 AM 2.3/ 2.8 0.4/ 0.9 0.2/ 0.7 1-2 None
03/09 PM 1.8/ 2.2 -0.2/ 0.2 -0.2/ 0.3 1 None
04/10 AM 2.1/ 2.6 0.1/ 0.6 0.1/ 0.6 1 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
-------- --------- --------- --------- ------- --------
02/12 AM 6.8/ 7.3 1.6/ 2.0 1.8/ 2.2 8 None
02/12 PM 7.2/ 7.7 2.0/ 2.5 1.1/ 1.6 7 None
03/01 AM 5.6/ 6.1 0.4/ 0.9 0.5/ 1.0 4 None
03/01 PM 6.1/ 6.6 0.9/ 1.4 0.1/ 0.6 2-3 None
04/01 AM 5.2/ 5.7 0.0/ 0.5 0.0/ 0.5 2 None
04/02 PM 5.7/ 6.2 0.5/ 1.0 0.0/ 0.5 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
-------- --------- --------- --------- ------- --------
02/12 AM 5.5/ 6.0 1.0/ 1.5 1.8/ 2.2 7 None
02/12 PM 5.9/ 6.4 1.4/ 1.9 1.2/ 1.7 5-6 None
03/01 AM 4.2/ 4.7 -0.3/ 0.2 0.4/ 0.9 3-4 None
03/01 PM 4.6/ 5.1 0.1/ 0.6 0.1/ 0.6 2 None
04/02 AM 4.0/ 4.5 -0.6/-0.1 0.1/ 0.6 2 None
04/02 PM 4.6/ 5.1 0.1/ 0.6 0.1/ 0.6 1 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
-------- --------- --------- --------- ------- --------
02/12 AM 5.1/ 5.6 1.3/ 1.8 2.0/ 2.5 4 Minor
02/12 PM 5.5/ 6.0 1.7/ 2.2 1.3/ 1.8 3 Minor
03/01 AM 3.7/ 4.2 0.0/ 0.5 0.6/ 1.1 2 None
03/01 PM 4.2/ 4.7 0.5/ 1.0 0.2/ 0.8 1 None
04/02 AM 3.5/ 4.0 -0.3/ 0.2 0.2/ 0.7 1 None
04/02 PM 4.0/ 4.5 0.2/ 0.7 0.2/ 0.7 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
-------- --------- --------- --------- ------- --------
01/11 PM 11.3/11.8 1.2/ 1.7 1.9/ 2.3 9 None
02/11 AM 12.1/12.6 2.0/ 2.5 1.3/ 1.8 6-7 None
03/12 AM 10.3/10.8 0.2/ 0.7 0.6/ 1.1 3-4 None
03/12 PM 10.9/11.4 0.8/ 1.3 0.2/ 0.7 2-3 None
04/01 AM 10.0/10.5 -0.2/ 0.3 0.2/ 0.7 2 None
04/01 PM 10.6/11.1 0.5/ 1.0 0.2/ 0.7 1-2 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
-------- --------- --------- --------- ------- --------
01/11 PM 12.2/12.7 1.7/ 2.2 2.2/ 2.7 5-6 None
02/11 AM 12.8/13.3 2.2/ 2.7 1.4/ 1.9 4 Minor
03/12 AM 10.9/11.4 0.4/ 0.9 0.6/ 1.1 2 None
03/12 PM 11.5/12.0 1.0/ 1.5 0.2/ 0.7 2 None
04/01 AM 10.5/11.0 0.0/ 0.5 0.2/ 0.7 1 None
04/01 PM 11.2/11.7 0.7/ 1.1 0.2/ 0.7 1 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
-------- --------- --------- --------- ------- --------
01/11 PM 10.8/11.3 0.5/ 1.0 2.2/ 2.7 5 None
02/11 AM 11.4/11.9 1.1/ 1.6 1.5/ 2.0 3-4 None
03/12 AM 9.5/10.0 -0.9/-0.4 0.8/ 1.3 2 None
03/12 PM 10.2/10.7 -0.2/ 0.3 0.4/ 0.9 1 None
04/01 AM 9.2/ 9.7 -1.1/-0.7 0.4/ 0.9 1 None
04/01 PM 9.8/10.3 -0.6/-0.1 0.4/ 0.9 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
-------- --------- --------- --------- ------- --------
02/08 AM 5.7/ 6.2 1.3/ 1.8 1.2/ 1.7 2 None
02/09 PM 4.5/ 5.0 0.1/ 0.6 0.4/ 0.9 1 None
03/09 AM 4.2/ 4.7 -0.2/ 0.3 0.0/ 0.5 1 None
03/10 PM 3.7/ 4.2 -0.8/-0.2 -0.3/ 0.2 1 None
04/10 AM 3.9/ 4.4 -0.6/-0.1 -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
-------- --------- --------- --------- ------- --------
02/12 AM 4.0/ 4.5 1.3/ 1.8 1.9/ 2.3 4 Minor
02/11 AM 4.0/ 4.5 1.4/ 1.9 1.3/ 1.8 3-4 Minor
03/12 AM 2.7/ 3.2 0.0/ 0.5 0.5/ 1.0 2 None
03/12 PM 2.7/ 3.2 0.1/ 0.6 0.2/ 0.7 2 None
04/01 AM 2.3/ 2.8 -0.3/ 0.2 0.1/ 0.6 2 None
04/01 PM 2.7/ 3.2 0.0/ 0.5 0.2/ 0.7 1 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
-------- --------- --------- --------- ------- --------
01/11 PM 3.2/ 3.7 1.3/ 1.8 1.7/ 2.2 3 None
02/11 AM 3.2/ 3.7 1.2/ 1.7 1.3/ 1.8 3 None
02/11 PM 2.1/ 2.6 0.1/ 0.6 0.6/ 1.1 2 None
03/12 PM 2.0/ 2.5 0.0/ 0.5 0.1/ 0.6 1 None
04/01 AM 1.8/ 2.2 -0.2/ 0.2 0.1/ 0.6 1 None
04/01 PM 1.9/ 2.3 -0.2/ 0.3 0.1/ 0.6 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
-------- --------- --------- --------- ------- --------
02/12 AM 5.2/ 5.7 1.7/ 2.2 2.5/ 3.0 7 Minor
02/12 PM 5.4/ 5.9 1.8/ 2.2 1.5/ 2.0 6 Minor
03/01 AM 3.6/ 4.1 0.0/ 0.5 0.6/ 1.1 3-4 None
03/01 PM 4.0/ 4.5 0.4/ 0.9 0.2/ 0.8 2-3 None
04/02 AM 3.4/ 3.9 -0.2/ 0.2 0.2/ 0.8 2 None
04/02 PM 3.9/ 4.4 0.2/ 0.8 0.4/ 0.9 2 None
&&
$$
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