449
WHUS41 KBOX 230529
CFWBOX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1229 AM EST MON FEB 23 2026
MAZ019-022>024-231830-
/O.CON.KBOX.CF.W.0002.260223T0600Z-260223T1200Z/
/O.CON.KBOX.CF.A.0003.260223T1800Z-260224T0100Z/
EASTERN PLYMOUTH MA-BARNSTABLE MA-DUKES MA-NANTUCKET MA-
1229 AM EST MON FEB 23 2026
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH THIS EVENING...
* WHAT...FOR THE COASTAL FLOOD WARNING, TWO TO THREE FEET OF
INUNDATION ABOVE GROUND LEVEL EXPECTED IN LOW-LYING AREAS NEAR
SHORELINES AND TIDAL WATERWAYS (4.4 TO 13.5 FEET MEAN LOWER
LOW WATER). FOR THE COASTAL FLOOD WATCH, ONE TO TWO FEET OF
INUNDATION ABOVE GROUND LEVEL POSSIBLE IN LOW-LYING AREAS NEAR
SHORELINES AND TIDAL WATERWAYS (3.6 TO 13.7 FEET MEAN LOWER
LOW WATER).
* WHERE...EASTERN PLYMOUTH MA, BARNSTABLE MA, DUKES MA AND
NANTUCKET MA COUNTIES.
* WHEN...FOR THE COASTAL FLOOD WARNING, UNTIL 7 AM EST THIS
MORNING. FOR THE COASTAL FLOOD WATCH, FROM THIS AFTERNOON
THROUGH THIS EVENING.
* 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. MANY COASTAL ROADS BECOME IMPASSABLE WITH FLOODING 1 TO
3 FEET DEEP. THIS INCLUDES THE CHAPPY FERRY DOCK AND DOCK
STREET NEAR EDGARTOWN HARBOR. IN VINEYARD HAVEN, FIVE CORNERS,
BEACH ROAD, AND WATER STREET BECOME IMPASSABLE. IN OAK BLUFFS,
FLOODING AFFECTS EAST CHOP DRIVE, THE SECTION OF LAKE AVENUE
NEAR OAK BLUFFS HARBOR, AND SEA VIEW AVENUE, WHERE DEBRIS MAY
ALSO WASH ONTO THE ROADWAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE THE NECESSARY ACTIONS TO PROTECT FLOOD-PRONE PROPERTY. IF
TRAVEL IS REQUIRED, DO NOT DRIVE AROUND BARRICADES OR THROUGH
WATER OF UNKNOWN DEPTH.
TIME OF HIGH TOTAL TIDES ARE APPROXIMATE TO THE NEAREST HOUR.
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
-------- --------- --------- --------- ------- --------
23/03 AM 12.6/13.1 2.7/ 3.2 2.5/ 3.0 4-8 MINOR
23/04 PM 12.0/12.5 2.1/ 2.6 3.2/ 3.7 12-13 MINOR
24/04 AM 11.4/11.9 1.5/ 2.0 1.4/ 1.9 8-10 MINOR
24/05 PM 9.0/ 9.5 -1.0/-0.5 0.6/ 1.1 4-5 NONE
25/05 AM 10.2/10.7 0.2/ 0.8 0.2/ 0.8 2 NONE
25/06 PM 8.6/ 9.1 -1.4/-0.9 0.4/ 0.9 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
-------- --------- --------- --------- ------- --------
23/03 AM 12.5/13.0 2.7/ 3.2 2.3/ 2.8 6-10 MINOR
23/03 PM 12.0/12.5 2.2/ 2.7 3.4/ 3.9 15-16 MINOR
24/04 AM 11.4/11.9 1.7/ 2.2 1.4/ 1.9 9-12 MINOR
24/05 PM 9.1/ 9.6 -0.7/-0.2 0.7/ 1.1 4-5 NONE
25/05 AM 10.3/10.8 0.6/ 1.1 0.4/ 0.9 2-3 NONE
25/06 PM 8.7/ 9.2 -1.1/-0.6 0.5/ 1.0 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
-------- --------- --------- --------- ------- --------
23/05 AM 4.2/ 4.7 2.2/ 2.7 3.4/ 3.9 5-7 NONE
24/01 AM 3.4/ 3.9 1.4/ 1.9 1.5/ 2.0 3-4 NONE
24/01 PM 1.8/ 2.2 -0.2/ 0.2 0.6/ 1.1 2-3 NONE
25/02 AM 1.9/ 2.3 -0.2/ 0.3 0.0/ 0.5 2 NONE
25/02 PM 1.8/ 2.2 -0.2/ 0.2 0.7/ 1.1 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
-------- --------- --------- --------- ------- --------
23/04 AM 8.3/ 8.8 3.1/ 3.6 2.6/ 3.1 7-12 NONE
23/04 PM 7.2/ 7.7 2.0/ 2.5 2.7/ 3.2 15-16 NONE
24/04 AM 6.9/ 7.4 1.7/ 2.2 1.4/ 1.9 9-11 NONE
24/05 PM 5.1/ 5.6 -0.2/ 0.3 0.8/ 1.3 4-5 NONE
25/06 AM 5.7/ 6.2 0.6/ 1.1 0.4/ 0.9 2-3 NONE
25/06 PM 4.4/ 4.9 -0.9/-0.4 0.2/ 0.8 3 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
-------- --------- --------- --------- ------- --------
23/04 AM 6.6/ 7.1 2.1/ 2.6 2.1/ 2.6 6-10 NONE
23/04 PM 5.2/ 5.7 0.8/ 1.3 1.9/ 2.3 12-13 NONE
24/05 AM 6.2/ 6.7 1.7/ 2.2 1.6/ 2.0 8-9 NONE
24/06 PM 4.0/ 4.5 -0.5/ 0.0 0.7/ 1.1 4 NONE
25/06 AM 4.9/ 5.4 0.4/ 0.9 0.2/ 0.8 2 NONE
25/07 PM 3.6/ 4.1 -1.0/-0.5 0.2/ 0.8 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
-------- --------- --------- --------- ------- --------
23/04 AM 6.7/ 7.2 2.8/ 3.4 3.0/ 3.5 5-7 MODERATE
23/05 PM 6.2/ 6.7 2.3/ 2.8 3.4/ 3.9 7 MINOR
24/05 AM 5.0/ 5.5 1.2/ 1.7 1.2/ 1.7 4-5 MINOR
24/06 PM 3.1/ 3.6 -0.8/-0.2 0.4/ 0.9 2 NONE
25/06 AM 4.4/ 4.9 0.6/ 1.1 0.5/ 1.0 1-2 NONE
25/06 PM 3.1/ 3.6 -0.8/-0.2 0.6/ 1.1 2 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
-------- --------- --------- --------- ------- --------
23/03 AM 12.6/13.1 2.5/ 3.0 2.2/ 2.7 6-11 NONE
23/03 PM 12.3/12.8 2.2/ 2.7 3.5/ 4.0 16-18 NONE
24/04 AM 11.8/12.3 1.7/ 2.2 1.6/ 2.0 10-12 NONE
24/05 PM 9.4/ 9.9 -0.8/-0.2 0.8/ 1.3 4-6 NONE
25/05 AM 10.4/10.9 0.2/ 0.8 0.4/ 0.9 2-3 NONE
25/06 PM 8.7/ 9.2 -1.5/-1.0 0.4/ 0.9 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
-------- --------- --------- --------- ------- --------
23/03 AM 13.3/13.8 2.7/ 3.2 2.3/ 2.8 4-7 MINOR
23/03 PM 13.5/14.0 3.0/ 3.5 4.2/ 4.7 9-10 MINOR
24/04 AM 12.6/13.1 2.1/ 2.6 1.8/ 2.2 6-7 NONE
24/05 PM 10.1/10.6 -0.5/ 0.0 1.0/ 1.5 3-4 NONE
25/05 AM 11.2/11.7 0.7/ 1.1 0.6/ 1.1 2 NONE
25/06 PM 9.5/10.0 -1.1/-0.6 0.6/ 1.1 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
-------- --------- --------- --------- ------- --------
23/03 AM 12.2/12.7 1.9/ 2.3 3.0/ 3.5 4-6 MINOR
23/04 PM 12.0/12.5 1.7/ 2.2 4.0/ 4.5 9 MINOR
24/04 AM 11.0/11.5 0.7/ 1.1 1.9/ 2.3 6-7 NONE
24/04 PM 8.4/ 8.9 -2.0/-1.5 1.0/ 1.5 3-4 NONE
25/05 AM 9.7/10.2 -0.7/-0.2 0.7/ 1.1 2 NONE
25/06 PM 8.4/ 8.9 -2.0/-1.5 1.1/ 1.6 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
-------- --------- --------- --------- ------- --------
23/02 AM 5.7/ 6.2 1.3/ 1.8 2.5/ 3.0 3-5 NONE
23/01 PM 5.4/ 5.9 1.0/ 1.5 2.1/ 2.6 5 NONE
24/01 AM 5.4/ 5.9 1.0/ 1.5 1.3/ 1.8 3 NONE
24/01 PM 3.4/ 3.9 -1.1/-0.6 0.2/ 0.8 2 NONE
25/02 AM 3.7/ 4.2 -0.7/-0.2 -0.2/ 0.2 1-2 NONE
25/03 PM 3.7/ 4.2 -0.8/-0.2 0.6/ 1.1 2-3 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
-------- --------- --------- --------- ------- --------
23/05 AM 6.2/ 6.7 3.5/ 4.0 3.7/ 4.2 6-8 MODERATE
24/04 AM 4.0/ 4.5 1.3/ 1.8 1.4/ 1.9 4-5 MINOR
24/05 PM 2.2/ 2.7 -0.6/-0.1 0.5/ 1.0 3 NONE
25/06 AM 3.2/ 3.7 0.5/ 1.0 0.4/ 0.9 2 NONE
25/06 PM 2.2/ 2.7 -0.5/ 0.0 0.6/ 1.1 4-5 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
-------- --------- --------- --------- ------- --------
23/05 AM 5.0/ 5.5 3.0/ 3.5 3.5/ 4.0 5-7 MINOR
24/04 AM 3.0/ 3.5 1.0/ 1.5 1.3/ 1.8 3 NONE
24/04 PM 1.8/ 2.2 -0.2/ 0.2 0.7/ 1.1 2 NONE
25/05 AM 2.1/ 2.6 0.1/ 0.6 0.4/ 0.9 2 NONE
25/06 PM 1.9/ 2.3 -0.2/ 0.3 0.7/ 1.1 3-4 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
-------- --------- --------- --------- ------- --------
23/05 AM 6.6/ 7.1 3.0/ 3.5 3.1/ 3.6 9-12 MODERATE
23/04 PM 5.2/ 5.7 1.7/ 2.2 2.7/ 3.2 11-12 MINOR
24/05 AM 4.9/ 5.4 1.3/ 1.8 1.3/ 1.8 7-8 MINOR
24/06 PM 3.1/ 3.6 -0.6/-0.1 0.5/ 1.0 4-5 NONE
25/06 AM 4.0/ 4.5 0.4/ 0.9 0.2/ 0.8 3 NONE
25/06 PM 2.6/ 3.1 -1.1/-0.6 0.2/ 0.8 4-5 NONE
MAZ007-015-016-231200-
/O.CON.KBOX.CF.Y.0002.260223T0600Z-260223T1200Z/
EASTERN ESSEX MA-SUFFOLK MA-EASTERN NORFOLK MA-
1229 AM EST MON FEB 23 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
* WHAT...UP TO ONE FOOT OF INUNDATION ABOVE GROUND LEVEL
EXPECTED IN LOW-LYING AREAS NEAR SHORELINES AND TIDAL
WATERWAYS (11.3 TO 13.2 FEET MEAN LOWER LOW WATER).
* WHERE...EASTERN ESSEX MA, SUFFOLK MA AND EASTERN NORFOLK MA
COUNTIES.
* WHEN...UNTIL 7 AM EST THIS MORNING.
* 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
-------- --------- --------- --------- ------- --------
23/03 AM 11.9/12.4 2.2/ 2.7 2.1/ 2.6 7-12 MINOR
23/03 PM 11.0/11.5 1.4/ 1.9 2.7/ 3.2 18-19 NONE
24/04 AM 10.9/11.4 1.3/ 1.8 1.2/ 1.7 9-11 NONE
24/04 PM 8.5/ 9.0 -1.1/-0.7 0.6/ 1.1 4-5 NONE
25/05 AM 9.9/10.4 0.2/ 0.8 0.2/ 0.8 2-3 NONE
25/06 PM 8.2/ 8.7 -1.5/-1.0 0.4/ 0.9 2-3 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
-------- --------- --------- --------- ------- --------
23/04 AM 11.1/11.6 1.6/ 2.0 2.3/ 2.8 5-10 MINOR
23/04 PM 10.1/10.6 0.6/ 1.1 2.3/ 2.8 12 NONE
24/04 AM 10.0/10.5 0.5/ 1.0 1.2/ 1.7 6-8 NONE
24/05 PM 7.8/ 8.4 -1.7/-1.2 0.5/ 1.0 3-4 NONE
25/05 AM 9.0/ 9.5 -0.6/-0.1 0.2/ 0.8 2 NONE
25/06 PM 7.5/ 8.0 -2.0/-1.6 0.4/ 0.9 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
-------- --------- --------- --------- ------- --------
23/03 AM 13.0/13.5 2.7/ 3.2 2.6/ 3.1 2 MINOR
23/03 PM 11.7/12.2 1.4/ 1.9 2.7/ 3.2 2 NONE
24/04 AM 11.4/11.9 1.1/ 1.6 1.2/ 1.7 2 NONE
24/04 PM 9.2/ 9.7 -1.1/-0.7 0.7/ 1.1 2 NONE
25/05 AM 10.4/10.9 0.1/ 0.6 0.4/ 0.9 1 NONE
25/06 PM 8.8/ 9.3 -1.6/-1.1 0.5/ 1.0 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
-------- --------- --------- --------- ------- --------
23/03 AM 12.6/13.1 2.7/ 3.2 2.3/ 2.8 2 MINOR
23/03 PM 11.6/12.1 1.7/ 2.2 2.7/ 3.2 2 NONE
24/04 AM 11.1/11.6 1.2/ 1.7 1.1/ 1.6 2 NONE
24/04 PM 8.8/ 9.3 -1.1/-0.7 0.5/ 1.0 1-2 NONE
25/05 AM 9.9/10.4 0.0/ 0.5 0.2/ 0.7 1 NONE
25/06 PM 8.4/ 8.9 -1.6/-1.1 0.4/ 0.9 1-2 NONE
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