• Coastal Flood Watch for Barnstable County, Massachusetts
  • Coastal Flood Watch issued March 21 at 10:21AM EDT until March 22 at 6:00AM EDT by NWS
  • Effective: Wednesday, March 21, 2018 at 11 p.m.
  • Expires: Thursday, March 22, 2018 at 5 a.m.
  • ...COASTAL FLOOD WATCH REMAINS IN EFFECT LATE TONIGHT...
    * LOCATION...MASSACHUSETTS EAST AND NORTH FACING SHORELINES
    SOUTH OF BOSTON. THIS INCLUDES HULL TO PLYMOUTH, SANDWICH TO
    DENNIS, TRURO TO CHATHAM, AND NANTUCKET.
    * TIDAL DEPARTURE...GENERALLY 2 TO 3 FEET.
    * TIMING...EARLY THURSDAY MORNING HIGH TIDE, WHICH IS GENERALLY
    BETWEEN 1 AND 6 AM EDT.
    * COASTAL FLOOD IMPACTS...MINOR TO POCKETS OF MODERATE COASTAL
    FLOODING. INUNDATION UP TO 2 FEET POSSIBLE IN LOW LYING AREAS.
    SOME VULNERABLE SHORELINE ROADS MAY NEED TO BE CLOSED FOR A
    TIME AROUND HIGH TIDE.
    * SHORELINE IMPACTS...AREAS OF MODERATE BEACH EROSION POSSIBLE
    ALONG THE OCEAN SIDE OF CAPE COD AND THE EAST SIDE OF
    NANTUCKET.
    &&
    TIME OF HIGH TOTAL TIDES ARE APPROXIMATE TO THE NEAREST HOUR.
    SCITUATE
    MLLW CATEGORIES - MINOR 11.5 FT, MODERATE 14.0 FT, MAJOR 16.0 FT
    MHHW CATEGORIES - MINOR 1.8 FT, MODERATE 4.3 FT, MAJOR 6.3 FT
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/03 PM 10.0/10.5 0.2/ 0.8 0.6/ 1.1 6-8 NONE
    22/03 AM 11.4/11.9 1.7/ 2.2 1.3/ 1.8 11-16 MINOR
    22/04 PM 9.4/ 9.9 -0.3/ 0.2 0.2/ 0.7 8-10 NONE
    23/04 AM 9.8/10.3 0.1/ 0.6 -0.2/ 0.2 4-7 NONE
    23/05 PM 8.8/ 9.3 -1.0/-0.5 -0.2/ 0.2 2-3 NONE
    24/05 AM 9.7/10.2 0.0/ 0.5 -0.2/ 0.2 2 NONE
    SANDWICH / DENNIS
    MLLW CATEGORIES - MINOR 13.0 FT, MODERATE 14.0 FT, MAJOR 15.5 FT
    MHHW CATEGORIES - MINOR 2.7 FT, MODERATE 3.7 FT, MAJOR 5.2 FT
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/03 PM 10.8/11.3 0.5/ 1.0 1.1/ 1.6 3-4 NONE
    22/03 AM 12.4/12.9 2.1/ 2.6 2.2/ 2.7 4-5 MINOR
    22/04 PM 9.8/10.3 -0.6/-0.1 0.4/ 0.9 3-4 NONE
    23/04 AM 10.1/10.6 -0.2/ 0.2 -0.2/ 0.3 3-4 NONE
    23/05 PM 9.0/ 9.5 -1.4/-0.9 -0.2/ 0.3 1 NONE
    24/05 AM 10.0/10.5 -0.3/ 0.2 0.0/ 0.5 1-2 NONE
    PROVINCETOWN HARBOR
    MLLW CATEGORIES - MINOR 12.5 FT, MODERATE 13.5 FT, MAJOR 15.0 FT
    MHHW CATEGORIES - MINOR 2.4 FT, MODERATE 3.4 FT, MAJOR 4.9 FT
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/03 PM 11.1/11.6 1.0/ 1.5 0.8/ 1.3 5-7 NONE
    22/03 AM 12.5/13.0 2.3/ 2.8 1.6/ 2.0 9-11 MINOR
    22/04 PM 10.4/10.9 0.2/ 0.8 0.4/ 0.9 7-9 NONE
    23/04 AM 10.7/11.2 0.6/ 1.1 -0.2/ 0.3 5-8 NONE
    23/05 PM 9.6/10.1 -0.6/-0.1 -0.2/ 0.3 2-3 NONE
    24/05 AM 10.7/11.2 0.6/ 1.1 0.0/ 0.5 2-3 NONE
    CHATHAM - EAST COAST
    MLLW CATEGORIES - MINOR 9.5 FT, MODERATE 12.0 FT, MAJOR 13.0 FT
    MHHW CATEGORIES - MINOR 1.8 FT, MODERATE 4.3 FT, MAJOR 5.3 FT
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/04 PM 6.5/ 7.0 -1.3/-0.8 1.0/ 1.5 7-8 NONE
    22/04 AM 7.7/ 8.2 0.0/ 0.5 1.6/ 2.0 10 NONE
    22/05 PM 5.7/ 6.2 -2.0/-1.5 0.4/ 0.9 7-9 NONE
    23/05 AM 6.1/ 6.6 -1.7/-1.2 0.0/ 0.5 5-7 NONE
    23/05 PM 5.1/ 5.6 -2.7/-2.2 -0.2/ 0.3 2-3 NONE
    24/06 AM 6.0/ 6.5 -1.8/-1.3 -0.2/ 0.3 2-3 NONE
    CHATHAM - SOUTH COAST
    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
    -------- --------- --------- --------- ------- --------
    21/04 PM 4.2/ 4.7 -0.3/ 0.2 0.7/ 1.1 5-6 NONE
    22/04 AM 4.7/ 5.2 0.2/ 0.8 0.9/ 1.4 6-7 NONE
    22/05 PM 3.9/ 4.4 -0.7/-0.2 0.5/ 1.0 4-6 NONE
    23/05 AM 3.9/ 4.4 -0.7/-0.2 -0.2/ 0.3 3-4 NONE
    23/06 PM 3.1/ 3.6 -1.5/-1.0 -0.2/ 0.2 2 NONE
    24/06 AM 3.7/ 4.2 -0.8/-0.2 -0.2/ 0.2 2 NONE
    BUZZARDS BAY - 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
    -------- --------- --------- --------- ------- --------
    21/12 PM 3.0/ 3.5 1.0/ 1.5 0.8/ 1.3 3 NONE
    22/12 AM 3.7/ 4.2 1.7/ 2.2 1.2/ 1.7 3 NONE
    22/01 PM 2.8/ 3.4 0.9/ 1.4 0.8/ 1.3 3 NONE
    23/01 AM 2.2/ 2.7 0.2/ 0.8 -0.2/ 0.3 2 NONE
    23/02 PM 1.8/ 2.2 -0.2/ 0.2 -0.2/ 0.2 1 NONE
    24/02 AM 2.2/ 2.7 0.2/ 0.7 -0.2/ 0.2 1 NONE
    WINGS NECK
    MLLW CATEGORIES - MINOR 6.5 FT, MODERATE 9.0 FT, MAJOR 11.5 FT
    MHHW CATEGORIES - MINOR 2.2 FT, MODERATE 4.7 FT, MAJOR 7.2 FT
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/12 PM 4.2/ 4.7 -0.2/ 0.3 0.4/ 0.9 3 NONE
    22/12 AM 5.1/ 5.6 0.8/ 1.3 0.8/ 1.3 3 NONE
    22/01 PM 4.5/ 5.0 0.2/ 0.7 0.8/ 1.3 3 NONE
    23/01 AM 4.2/ 4.7 -0.2/ 0.3 0.0/ 0.5 1-2 NONE
    23/02 PM 3.2/ 3.7 -1.1/-0.6 -0.2/ 0.2 1 NONE
    24/02 AM 3.9/ 4.4 -0.5/ 0.0 -0.2/ 0.2 1 NONE
    VINEYARD HAVEN
    MLLW CATEGORIES - MINOR 5.0 FT, MODERATE 6.5 FT, MAJOR 8.5 FT
    MHHW CATEGORIES - MINOR 2.9 FT, MODERATE 4.1 FT, MAJOR 6.4 FT
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/04 PM 2.5/ 3.0 0.4/ 0.9 1.0/ 1.5 3 NONE
    22/04 AM 2.7/ 3.2 0.6/ 1.1 1.0/ 1.5 3-4 NONE
    22/05 PM 2.0/ 2.5 -0.2/ 0.3 0.6/ 1.1 2-3 NONE
    23/05 AM 1.6/ 2.0 -0.6/-0.1 -0.2/ 0.3 1-2 NONE
    23/06 PM 1.2/ 1.7 -1.0/-0.5 -0.2/ 0.2 1 NONE
    24/06 AM 1.5/ 2.0 -0.7/-0.2 -0.2/ 0.2 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
    -------- --------- --------- --------- ------- --------
    21/04 PM 3.9/ 4.4 0.2/ 0.8 1.0/ 1.5 6-7 NONE
    22/04 AM 4.5/ 5.0 0.9/ 1.4 1.2/ 1.7 6-7 MINOR
    22/05 PM 3.4/ 3.9 -0.2/ 0.2 0.6/ 1.1 4-6 NONE
    23/05 AM 3.2/ 3.7 -0.5/ 0.0 -0.2/ 0.2 3-4 NONE
    23/06 PM 2.5/ 3.0 -1.1/-0.7 -0.2/ 0.2 2 NONE
    24/06 AM 3.2/ 3.7 -0.5/ 0.0 -0.2/ 0.2 2 NONE
    NANTUCKET EAST COAST - EROSION IMPACTS
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/04 PM 4.9/ 5.4 0.8/ 1.3 1.3/ 1.8 8-9 NONE
    22/04 AM 5.7/ 6.2 1.6/ 2.0 1.7/ 2.2 9 MINOR
    22/05 PM 4.0/ 4.5 0.0/ 0.5 0.6/ 1.1 7-9 NONE
    23/05 AM 3.9/ 4.4 -0.2/ 0.2 -0.2/ 0.3 5-7 NONE
    23/06 PM 3.2/ 3.7 -1.0/-0.5 -0.2/ 0.3 2-3 NONE
    24/06 AM 3.9/ 4.4 -0.2/ 0.2 -0.2/ 0.3 2-3 NONE
    NANTUCKET - MADAKET AREA EROSION IMPACTS
    TOTAL TOTAL DEPARTURE
    DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
    FT MLLW FT MHHW FT FT IMPACT
    -------- --------- --------- --------- ------- --------
    21/04 PM 3.4/ 3.9 2.0/ 2.5 1.0/ 1.5 6-7 NONE
    22/04 AM 3.6/ 4.1 2.2/ 2.7 1.0/ 1.5 6-7 NONE
    22/04 PM 3.0/ 3.5 1.6/ 2.0 0.7/ 1.1 5-6 NONE
    23/05 AM 2.5/ 3.0 1.1/ 1.6 -0.2/ 0.3 2-4 NONE
    23/05 PM 2.0/ 2.5 0.6/ 1.1 -0.2/ 0.2 2 NONE
    24/06 AM 2.3/ 2.8 1.0/ 1.5 -0.2/ 0.2 2 NONE