Coastal Flood Warnings/Watches/Statements
Issued by NWS Boston, MA
Issued by NWS Boston, MA
078
WHUS41 KBOX 131917
CFWBOX
Coastal Hazard Message
National Weather Service Boston/Norton MA
317 PM EDT Mon Oct 13 2025
RIZ006>008-132030-
/O.CAN.KBOX.CF.Y.0009.000000T0000Z-251013T2000Z/
Washington RI-Newport RI-Block Island RI-
317 PM EDT Mon Oct 13 2025
...COASTAL FLOOD ADVISORY IS CANCELLED...
$$
MAZ007-015-016-019-022>024-132300-
/O.CON.KBOX.CF.Y.0009.000000T0000Z-251013T2300Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
317 PM EDT Mon Oct 13 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...
* WHAT...Up to one half foot of inundation above ground level in
low-lying areas near shorelines and tidal waterways (3.5 to
12.1 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...Until 7 PM EDT this evening.
* 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...
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
-------- --------- --------- --------- ------- --------
13/05 PM 11.2/11.7 1.6/ 2.0 1.1/ 1.6 14-15 None
14/06 AM 9.2/ 9.7 -0.5/ 0.0 0.7/ 1.1 12 None
14/06 PM 10.1/10.6 0.5/ 1.0 0.5/ 1.0 8-9 None
15/07 AM 9.0/ 9.5 -0.7/-0.2 0.6/ 1.1 5 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
-------- --------- --------- --------- ------- --------
13/05 PM 10.1/10.6 0.6/ 1.1 1.1/ 1.6 9 None
14/06 AM 8.3/ 8.8 -1.3/-0.8 0.7/ 1.1 7 None
14/06 PM 9.1/ 9.6 -0.5/ 0.0 0.5/ 1.0 5 None
15/07 AM 8.1/ 8.6 -1.5/-1.0 0.6/ 1.1 4 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
-------- --------- --------- --------- ------- --------
13/05 PM 11.6/12.1 1.3/ 1.8 1.2/ 1.7 2 None
14/06 AM 9.7/10.2 -0.7/-0.2 0.8/ 1.3 2 None
14/06 PM 10.5/11.0 0.2/ 0.7 0.6/ 1.1 1-2 None
15/07 AM 9.5/10.0 -0.9/-0.4 0.7/ 1.1 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
-------- --------- --------- --------- ------- --------
13/05 PM 11.3/11.8 1.4/ 1.9 1.1/ 1.6 2 None
14/06 AM 9.4/ 9.9 -0.6/-0.1 0.8/ 1.3 2 None
14/06 PM 10.3/10.8 0.4/ 0.9 0.6/ 1.1 1-2 None
15/07 AM 9.2/ 9.7 -0.8/-0.2 0.7/ 1.1 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
-------- --------- --------- --------- ------- --------
13/05 PM 12.1/12.6 2.2/ 2.7 1.8/ 2.2 8 Minor
14/06 AM 9.6/10.1 -0.3/ 0.2 0.9/ 1.4 6 None
14/06 PM 10.6/11.1 0.7/ 1.1 0.7/ 1.1 4-5 None
15/07 AM 9.3/ 9.8 -0.7/-0.2 0.7/ 1.1 3 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
-------- --------- --------- --------- ------- --------
13/05 PM 10.9/11.4 1.2/ 1.7 1.8/ 2.2 13 None
14/06 AM 9.4/ 9.9 -0.3/ 0.2 0.9/ 1.4 10 None
14/06 PM 10.2/10.7 0.5/ 1.0 0.6/ 1.1 7-8 None
15/07 AM 9.2/ 9.7 -0.6/-0.1 0.7/ 1.1 4 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
-------- --------- --------- --------- ------- --------
13/02 PM 3.9/ 4.4 1.9/ 2.3 1.6/ 2.0 6 None
14/02 AM 2.5/ 3.0 0.5/ 1.0 1.0/ 1.5 5 None
14/03 PM 2.7/ 3.2 0.8/ 1.3 0.7/ 1.1 4 None
15/03 AM 2.2/ 2.7 0.2/ 0.7 0.7/ 1.1 2-3 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
-------- --------- --------- --------- ------- --------
13/06 PM 6.5/ 7.0 1.3/ 1.8 0.8/ 1.3 10-11 None
14/06 AM 5.1/ 5.6 -0.2/ 0.3 0.7/ 1.1 8-9 None
14/07 PM 6.0/ 6.5 0.8/ 1.3 0.6/ 1.1 6-7 None
15/08 AM 5.2/ 5.7 0.0/ 0.5 0.6/ 1.1 5 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
-------- --------- --------- --------- ------- --------
13/06 PM 5.7/ 6.2 1.2/ 1.7 0.9/ 1.4 9 None
14/07 AM 4.4/ 4.9 -0.2/ 0.3 0.7/ 1.1 7 None
14/07 PM 5.2/ 5.7 0.7/ 1.1 0.6/ 1.1 6 None
15/08 AM 4.5/ 5.0 0.0/ 0.5 0.7/ 1.1 4 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
-------- --------- --------- --------- ------- --------
13/05 PM 11.4/11.9 1.3/ 1.8 1.2/ 1.7 10 None
14/06 AM 9.7/10.2 -0.5/ 0.0 0.9/ 1.4 8 None
14/06 PM 10.5/11.0 0.4/ 0.9 0.7/ 1.1 6 None
15/07 AM 9.5/10.0 -0.7/-0.2 0.8/ 1.3 4 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
-------- --------- --------- --------- ------- --------
13/05 PM 12.3/12.8 1.8/ 2.2 1.3/ 1.8 6 None
14/06 AM 10.4/10.9 -0.2/ 0.3 1.0/ 1.5 5 None
14/06 PM 11.4/11.9 0.9/ 1.4 0.9/ 1.4 4 None
15/07 AM 10.1/10.6 -0.5/ 0.0 0.8/ 1.3 3 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
-------- --------- --------- --------- ------- --------
13/05 PM 10.7/11.2 0.4/ 0.9 1.6/ 2.0 5 None
14/06 AM 8.7/ 9.2 -1.7/-1.2 1.1/ 1.6 4 None
14/06 PM 9.6/10.1 -0.8/-0.2 0.9/ 1.4 3 None
15/07 AM 8.5/ 9.0 -1.9/-1.4 0.9/ 1.4 2 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
-------- --------- --------- --------- ------- --------
13/02 PM 5.1/ 5.6 0.7/ 1.1 0.9/ 1.4 4 None
14/03 AM 3.9/ 4.4 -0.6/-0.1 0.2/ 0.8 3 None
14/03 PM 4.2/ 4.7 -0.2/ 0.2 0.2/ 0.7 3 None
15/04 AM 3.9/ 4.4 -0.6/-0.1 0.2/ 0.8 1-2 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
-------- --------- --------- --------- ------- --------
13/06 PM 4.2/ 4.7 1.6/ 2.0 1.4/ 1.9 7 Minor
14/06 AM 3.0/ 3.5 0.2/ 0.8 1.0/ 1.5 6 None
14/07 PM 3.7/ 4.2 1.0/ 1.5 0.9/ 1.4 5 None
15/08 AM 3.0/ 3.5 0.2/ 0.8 0.8/ 1.3 3 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
-------- --------- --------- --------- ------- --------
13/06 PM 3.5/ 4.0 1.5/ 2.0 1.5/ 2.0 5-6 None
14/06 AM 2.5/ 3.0 0.5/ 1.0 0.9/ 1.4 4-5 None
14/07 PM 2.7/ 3.2 0.7/ 1.1 0.8/ 1.3 4 None
15/07 AM 2.3/ 2.8 0.4/ 0.9 0.8/ 1.3 2 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
-------- --------- --------- --------- ------- --------
13/06 PM 5.2/ 5.7 1.6/ 2.0 1.2/ 1.7 10 Minor
14/07 AM 3.7/ 4.2 0.1/ 0.6 0.8/ 1.3 8 None
14/07 PM 4.6/ 5.1 1.0/ 1.5 0.8/ 1.3 6-7 None
15/08 AM 3.7/ 4.2 0.2/ 0.7 0.8/ 1.3 4-5 None
&&
$$