442
WHUS41 KBOX 130810
CFWBOX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
410 AM EDT MON OCT 13 2025
RIZ006>008-132000-
/O.EXP.KBOX.CF.Y.0008.000000T0000Z-251013T0800Z/
/O.NEW.KBOX.CF.Y.0009.251013T1600Z-251013T2000Z/
WASHINGTON RI-NEWPORT RI-BLOCK ISLAND RI-
410 AM EDT MON OCT 13 2025
...COASTAL FLOOD ADVISORY IN EFFECT FROM NOON TODAY TO 4 PM EDT
THIS AFTERNOON...
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL
EXPECTED IN LOW-LYING AREAS NEAR SHORELINES AND TIDAL
WATERWAYS (5.0 TO 5.8 FEET MEAN LOWER LOW WATER).
* WHERE...WASHINGTON, AND NEWPORT COUNTIES.
* WHEN...FROM NOON TODAY TO 4 PM EDT THIS AFTERNOON.
* IMPACTS...FLOODING OF LOTS, PARKS, AND ROADS WITH ONLY
ISOLATED ROAD CLOSURES EXPECTED.
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.
WESTERLY RI AT WATCH HILL
MLLW CATEGORIES - MINOR 5.0 FT, MODERATE 8.0 FT, MAJOR 9.5 FT
MHHW CATEGORIES - MINOR 2.0 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 4.7/ 5.2 1.8/ 2.2 2.0/ 2.5 9-10 MINOR
14/03 AM 3.4/ 3.9 0.4/ 0.9 1.2/ 1.7 6-8 NONE
14/04 PM 3.7/ 4.2 0.7/ 1.1 0.9/ 1.4 5 NONE
15/04 AM 3.2/ 3.7 0.2/ 0.7 0.8/ 1.3 4 NONE
15/05 PM 3.4/ 3.9 0.4/ 0.9 0.8/ 1.3 3-4 NONE
NEWPORT HARBOR
MLLW CATEGORIES - MINOR 6.0 FT, MODERATE 7.5 FT, MAJOR 9.0 FT
MHHW CATEGORIES - MINOR 2.1 FT, MODERATE 3.6 FT, MAJOR 5.1 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
13/02 PM 5.6/ 6.1 1.7/ 2.2 1.7/ 2.2 3 NONE
14/02 AM 4.4/ 4.9 0.5/ 1.0 1.0/ 1.5 3 NONE
14/03 PM 4.5/ 5.0 0.6/ 1.1 0.8/ 1.3 3 NONE
15/03 AM 4.2/ 4.7 0.2/ 0.8 0.8/ 1.3 2-3 NONE
15/04 PM 4.4/ 4.9 0.5/ 1.0 0.8/ 1.3 2 NONE
NEWPORT SOUTH COAST BEACHES
MLLW CATEGORIES - MINOR 6.0 FT, MODERATE 7.5 FT, MAJOR 9.0 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
-------- --------- --------- --------- ------- --------
13/02 PM 5.2/ 5.7 1.8/ 2.2 1.7/ 2.2 8 NONE
14/02 AM 4.0/ 4.5 0.6/ 1.1 1.0/ 1.5 6 NONE
14/03 PM 4.2/ 4.7 0.7/ 1.1 0.8/ 1.3 4-5 NONE
15/03 AM 3.7/ 4.2 0.2/ 0.8 0.7/ 1.1 3-4 NONE
15/04 PM 4.0/ 4.5 0.5/ 1.0 0.7/ 1.1 3 NONE
BLOCK ISLAND AT OLD HARBOR
MLLW CATEGORIES - MINOR 6.0 FT, MODERATE 7.5 FT, MAJOR 9.0 FT
MHHW CATEGORIES - MINOR 2.8 FT, MODERATE 4.3 FT, MAJOR 5.8 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
13/01 PM 5.0/ 5.5 1.8/ 2.2 1.9/ 2.3 14-15 NONE
14/02 AM 3.9/ 4.4 0.7/ 1.1 1.2/ 1.7 10-11 NONE
14/03 PM 3.9/ 4.4 0.7/ 1.1 0.9/ 1.4 8 NONE
15/03 AM 3.6/ 4.1 0.4/ 0.9 0.9/ 1.4 6 NONE
15/03 PM 3.7/ 4.2 0.5/ 1.0 0.9/ 1.4 5 NONE
MAZ023-024-132115-
/O.NEW.KBOX.CF.Y.0009.251013T1900Z-251013T2300Z/
/O.CON.KBOX.CF.Y.0008.000000T0000Z-251013T1200Z/
DUKES MA-NANTUCKET MA-
410 AM EDT MON OCT 13 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
7 PM EDT THIS EVENING...
* WHAT...FOR THE FIRST COASTAL FLOOD ADVISORY, UP TO ONE HALF
FOOT OF INUNDATION ABOVE GROUND LEVEL IN LOW-LYING AREAS NEAR
SHORELINES AND TIDAL WATERWAYS (3.5 TO 4.7 FEET MEAN LOWER LOW
WATER). FOR THE SECOND COASTAL FLOOD ADVISORY, UP TO ONE FOOT
OF INUNDATION ABOVE GROUND LEVEL EXPECTED IN LOW-LYING AREAS
NEAR SHORELINES AND TIDAL WATERWAYS (3.7 TO 5.4 FEET MEAN
LOWER LOW WATER).
* WHERE...DUKES AND NANTUCKET COUNTIES.
* WHEN...FOR THE FIRST COASTAL FLOOD ADVISORY, UNTIL 8 AM EDT
THIS MORNING. FOR THE SECOND COASTAL FLOOD ADVISORY, FROM 3 PM
THIS AFTERNOON TO 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.
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 AM 3.9/ 4.4 1.2/ 1.7 1.9/ 2.3 8 MINOR
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 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
15/08 PM 3.5/ 4.0 0.8/ 1.3 0.8/ 1.3 3-4 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 AM 3.2/ 3.7 1.3/ 1.8 1.8/ 2.2 6-7 NONE
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 NONE
14/07 PM 2.7/ 3.2 0.7/ 1.1 0.8/ 1.3 3-4 NONE
15/07 AM 2.3/ 2.8 0.4/ 0.9 0.8/ 1.3 2-3 NONE
15/08 PM 2.6/ 3.1 0.6/ 1.1 0.7/ 1.1 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
-------- --------- --------- --------- ------- --------
13/06 AM 4.5/ 5.0 0.9/ 1.4 1.5/ 2.0 10-11 NONE
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 7 NONE
14/07 PM 4.6/ 5.1 1.0/ 1.5 0.8/ 1.3 6 NONE
15/08 AM 3.7/ 4.2 0.2/ 0.7 0.8/ 1.3 4-5 NONE
15/08 PM 4.4/ 4.9 0.8/ 1.3 0.8/ 1.3 5-6 NONE
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