771
WHUS41 KBOX 310616
CFWBOX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
116 AM EST SAT JAN 31 2026
MAZ007-015-016-019-312300-
/O.CON.KBOX.CF.Y.0001.260201T1300Z-260202T1900Z/
EASTERN ESSEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
EASTERN PLYMOUTH MA-
116 AM EST SAT JAN 31 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 8 AM SUNDAY TO
2 PM EST MONDAY...
* WHAT...ONE TO TWO FEET OF INUNDATION ABOVE GROUND LEVEL
EXPECTED IN LOW-LYING AREAS NEAR SHORELINES AND TIDAL
WATERWAYS (10.8 TO 12.7 FEET MEAN LOWER LOW WATER).
* WHERE...EASTERN ESSEX MA, SUFFOLK MA, EASTERN NORFOLK MA AND
EASTERN PLYMOUTH MA COUNTIES.
* WHEN...FROM 8 AM SUNDAY TO 2 PM EST MONDAY.
* IMPACTS...SHALLOW POCKETS OF FLOODING LESS THAN ONE FOOT DEEP
AFFECTS THE LOWEST LYING AREAS ALONG THE COAST, INCLUDING
MORRISSEY BOULEVARD IN BOSTON. MOST ROADS REMAIN PASSABLE.
FLOODING UP TO ONE FOOT DEEP AFFECTS COASTAL ROADS ON THE
NORTH SHORE FROM SALEM TO GLOUCESTER AND NEWBURYPORT. ROUGH
SURF WILL CAUSE FLOODING ON SOME COASTAL ROADS AROUND THE TIME
OF HIGH TIDE DUE TO SPLASHOVER.
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
-------- --------- --------- --------- ------- --------
31/09 AM 10.1/10.6 0.5/ 1.0 0.0/ 0.5 1-2 NONE
31/10 PM 8.7/ 9.2 -1.0/-0.5 0.1/ 0.6 1-2 NONE
01/10 AM 11.6/12.1 2.0/ 2.5 1.3/ 1.8 5-8 MINOR
01/11 PM 11.2/11.7 1.6/ 2.0 2.2/ 2.7 11 NONE
02/11 AM 12.0/12.5 2.3/ 2.8 1.6/ 2.0 7-9 MINOR
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
-------- --------- --------- --------- ------- --------
31/10 AM 9.2/ 9.7 -0.3/ 0.2 0.0/ 0.5 1 NONE
31/10 PM 7.8/ 8.3 -1.8/-1.3 0.1/ 0.6 1-2 NONE
01/11 AM 10.4/10.9 0.9/ 1.4 1.1/ 1.6 4-6 NONE
01/11 PM 10.3/10.8 0.8/ 1.3 2.2/ 2.7 7 NONE
02/11 AM 10.6/11.1 1.1/ 1.6 1.4/ 1.9 5-6 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
-------- --------- --------- --------- ------- --------
31/09 AM 10.8/11.3 0.5/ 1.0 0.1/ 0.6 1 NONE
31/10 PM 9.5/10.0 -0.9/-0.4 0.2/ 0.7 1-2 NONE
01/10 AM 12.3/12.8 2.0/ 2.5 1.4/ 1.9 2 MINOR
01/11 PM 11.8/12.3 1.5/ 2.0 2.2/ 2.7 2 NONE
02/11 AM 12.5/13.0 2.2/ 2.7 1.5/ 2.0 2 MINOR
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
-------- --------- --------- --------- ------- --------
31/09 AM 10.5/11.0 0.6/ 1.1 0.1/ 0.6 1 NONE
31/10 PM 9.3/ 9.8 -0.7/-0.2 0.1/ 0.6 1-2 NONE
01/10 AM 12.2/12.7 2.2/ 2.7 1.4/ 1.9 2 NONE
01/11 PM 11.8/12.3 1.9/ 2.3 2.2/ 2.7 2 NONE
02/11 AM 12.4/12.9 2.5/ 3.0 1.5/ 2.0 2 MINOR
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
-------- --------- --------- --------- ------- --------
31/10 AM 10.6/11.1 0.7/ 1.1 0.1/ 0.6 1-2 NONE
31/10 PM 9.2/ 9.7 -0.8/-0.2 0.2/ 0.8 1-2 NONE
01/10 AM 12.2/12.7 2.2/ 2.7 1.6/ 2.0 4-7 MINOR
01/11 PM 11.8/12.3 1.9/ 2.3 2.6/ 3.1 8-9 MINOR
02/11 AM 12.3/12.8 2.3/ 2.8 1.6/ 2.0 6-7 MINOR
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
-------- --------- --------- --------- ------- --------
31/09 AM 10.5/11.0 0.8/ 1.3 0.1/ 0.6 1-2 NONE
31/10 PM 9.1/ 9.6 -0.7/-0.2 0.2/ 0.7 1-2 NONE
01/11 AM 12.0/12.5 2.2/ 2.7 1.4/ 1.9 5-8 MINOR
01/11 PM 11.8/12.3 2.1/ 2.6 2.5/ 3.0 10 MINOR
02/11 AM 12.2/12.7 2.5/ 3.0 1.5/ 2.0 7-8 MINOR
MAZ022>024-312300-
/O.CON.KBOX.CF.A.0001.260201T1300Z-260202T1900Z/
BARNSTABLE MA-DUKES MA-NANTUCKET MA-
116 AM EST SAT JAN 31 2026
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY AFTERNOON...
* WHAT...ONE TO TWO FEET OF INUNDATION ABOVE GROUND LEVEL
POSSIBLE IN LOW-LYING AREAS NEAR SHORELINES AND TIDAL
WATERWAYS (4.2 TO 13.4 FEET MEAN LOWER LOW WATER).
* WHERE...BARNSTABLE MA, DUKES MA AND NANTUCKET MA COUNTIES.
* WHEN...FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON.
* IMPACTS...MANY ROADS NEAR NANTUCKET HARBOR BECOME IMPASSABLE
WITH 1 TO 2 FEET OF WATER AND AFFECTS ACCESS TO THE FERRY
TERMINALS. THIS INCLUDES EASY STREET, SOUTH BEACH STREET,
EASTON STREET, WALSH STREET, WILLARD STREET, AND STRAIGHT
WHARF. ROADS REMAIN PASSABLE WITH POCKETS OF SHALLOW FLOODING
LESS THAN ONE FOOT DEEP. THIS MAINLY AFFECTS LOW LYING AREAS
AND ROADS NEAR EDGARTOWN HARBOR, INCLUDING THE CHAPPY FERRY
DOCK. SHALLOW FLOODING MAY ALSO APPROACH FIVE CORNERS IN
VINEYARD HAVEN.
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.
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
-------- --------- --------- --------- ------- --------
31/07 AM 2.3/ 2.8 0.4/ 0.9 0.0/ 0.5 1-2 NONE
31/07 PM 1.8/ 2.2 -0.2/ 0.2 0.2/ 0.7 1 NONE
01/07 AM 3.5/ 4.0 1.5/ 2.0 1.1/ 1.6 3-4 NONE
01/08 PM 3.7/ 4.2 1.7/ 2.2 2.0/ 2.5 4 NONE
02/08 AM 4.4/ 4.9 2.3/ 2.8 2.0/ 2.5 3 NONE
02/08 PM 2.7/ 3.2 0.7/ 1.1 0.9/ 1.4 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
-------- --------- --------- --------- ------- --------
31/10 AM 6.1/ 6.6 0.9/ 1.4 0.1/ 0.6 2 NONE
31/11 PM 4.9/ 5.4 -0.3/ 0.2 0.1/ 0.6 1-2 NONE
01/11 AM 7.3/ 7.8 2.1/ 2.6 1.2/ 1.7 5-8 NONE
02/12 AM 7.2/ 7.7 2.0/ 2.5 2.2/ 2.7 11-12 NONE
02/12 PM 7.7/ 8.2 2.5/ 3.0 1.6/ 2.0 8-9 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
-------- --------- --------- --------- ------- --------
31/11 AM 4.9/ 5.4 0.4/ 0.9 0.1/ 0.6 1-2 NONE
31/11 PM 3.7/ 4.2 -0.8/-0.2 0.2/ 0.7 1-2 NONE
01/12 PM 5.9/ 6.4 1.4/ 1.9 1.1/ 1.6 5-8 NONE
02/12 AM 5.7/ 6.2 1.3/ 1.8 2.1/ 2.6 9-10 NONE
02/12 PM 6.2/ 6.7 1.7/ 2.2 1.5/ 2.0 6-8 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
-------- --------- --------- --------- ------- --------
31/10 AM 4.4/ 4.9 0.6/ 1.1 0.2/ 0.7 1 NONE
31/11 PM 3.2/ 3.7 -0.6/-0.1 0.4/ 0.9 1-2 NONE
01/11 AM 5.7/ 6.2 1.9/ 2.3 1.5/ 2.0 4-5 MINOR
02/12 AM 5.7/ 6.2 1.9/ 2.3 2.6/ 3.1 5-6 MINOR
02/12 PM 5.7/ 6.2 2.0/ 2.5 1.6/ 2.0 3-4 MINOR
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
-------- --------- --------- --------- ------- --------
31/09 AM 10.7/11.2 0.6/ 1.1 0.2/ 0.7 2 NONE
31/10 PM 9.4/ 9.9 -0.8/-0.2 0.2/ 0.8 1-2 NONE
01/10 AM 12.2/12.7 2.1/ 2.6 1.5/ 2.0 5-8 NONE
01/11 PM 12.0/12.5 1.9/ 2.3 2.6/ 3.1 12-13 NONE
02/11 AM 12.5/13.0 2.3/ 2.8 1.7/ 2.2 8-10 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
-------- --------- --------- --------- ------- --------
31/09 AM 11.4/11.9 0.9/ 1.4 0.2/ 0.8 1-2 NONE
31/10 PM 10.1/10.6 -0.5/ 0.0 0.4/ 0.9 1-2 NONE
01/10 AM 13.1/13.6 2.6/ 3.1 1.8/ 2.2 4-5 MINOR
01/11 PM 12.9/13.4 2.3/ 2.8 2.8/ 3.4 7-8 MINOR
02/11 AM 13.2/13.7 2.7/ 3.2 1.8/ 2.2 5-6 MINOR
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
-------- --------- --------- --------- ------- --------
31/09 AM 10.1/10.6 -0.2/ 0.2 0.4/ 0.9 1-2 NONE
31/10 PM 8.9/ 9.4 -1.5/-1.0 0.6/ 1.1 1-2 NONE
01/11 AM 11.7/12.2 1.4/ 1.9 2.1/ 2.6 4-5 NONE
01/11 PM 11.4/11.9 1.1/ 1.6 2.8/ 3.4 7-8 NONE
02/11 AM 11.9/12.4 1.6/ 2.0 2.0/ 2.5 4-5 MINOR
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
-------- --------- --------- --------- ------- --------
31/07 AM 4.0/ 4.5 -0.5/ 0.0 -0.5/ 0.0 1 NONE
31/07 PM 3.4/ 3.9 -1.1/-0.6 -0.3/ 0.2 1 NONE
01/08 AM 5.0/ 5.5 0.6/ 1.1 0.6/ 1.1 3 NONE
01/08 PM 5.5/ 6.0 1.1/ 1.6 1.5/ 2.0 4 NONE
02/09 AM 6.1/ 6.6 1.7/ 2.2 1.8/ 2.2 2-3 NONE
02/09 PM 4.5/ 5.0 0.1/ 0.6 0.4/ 0.9 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
-------- --------- --------- --------- ------- --------
31/10 AM 3.2/ 3.7 0.5/ 1.0 0.1/ 0.6 1-2 NONE
31/11 PM 2.2/ 2.7 -0.6/-0.1 0.2/ 0.7 1-2 NONE
01/11 AM 4.4/ 4.9 1.7/ 2.2 1.4/ 1.9 4-5 MINOR
01/11 PM 4.5/ 5.0 1.8/ 2.2 2.5/ 3.0 5 MINOR
02/12 PM 4.5/ 5.0 1.8/ 2.2 1.6/ 2.0 3-4 MINOR
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
-------- --------- --------- --------- ------- --------
31/09 AM 2.1/ 2.6 0.1/ 0.6 0.1/ 0.6 1 NONE
31/10 PM 1.7/ 2.2 -0.3/ 0.2 0.2/ 0.7 1-2 NONE
01/11 AM 3.5/ 4.0 1.5/ 2.0 1.5/ 2.0 3-4 NONE
01/11 PM 4.0/ 4.5 2.0/ 2.5 2.3/ 2.8 4 NONE
02/11 AM 3.7/ 4.2 1.7/ 2.2 1.8/ 2.2 3 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
-------- --------- --------- --------- ------- --------
31/01 AM 4.2/ 4.7 0.7/ 1.1 2.7/ 3.2 2-3 NONE
31/11 PM 3.1/ 3.6 -0.6/-0.1 0.4/ 0.9 1-3 NONE
01/12 PM 5.7/ 6.2 2.2/ 2.7 1.9/ 2.3 6-8 MINOR
02/12 AM 5.5/ 6.0 1.9/ 2.3 2.7/ 3.2 9 MINOR
02/12 PM 5.6/ 6.1 2.0/ 2.5 1.7/ 2.2 6-7 MINOR
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