• High Surf Advisory for Barnstable County, Massachusetts
  • High Surf Advisory issued September 09 at 3:38PM EDT until September 09 at 8:00PM EDT by NWS
  • Effective: Sunday, September 9, 2018 at 2:38 p.m.
  • Expires: Sunday, September 9, 2018 at 7 p.m.
  • ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
    EVENING...
    ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 8 PM THIS
    EVENING TO 2 AM EDT MONDAY...
    * LOCATIONS...Barnstable and Nantucket Counties.
    * TIMING...High surf and a moderate risk for rip currents through
    early tonight, primarily at south-facing beaches. Minor coastal
    splashover during the time of high tide tonight.
    * COASTAL FLOOD IMPACTS...Up to one half foot of saltwater
    inundation above ground level is possible in low-lying areas
    near shorelines and tidal waterways (3.8 to 12.9 feet Mean Lower
    Low Water). Minor flooding of low-lying coastal sections is
    expected, mainly in Cape Cod Bay. Some immediate coastal roads
    may be flooded for a short time nearest high tide due to large
    surf and high tides.
    * SURF ZONE IMPACTS...Large breaking waves of 3 to 5 feet will be
    dangerous to anyone who enters the surf.
    Time of high total tides are approximate to the nearest hour.
    Category thresholds are based on still water levels. Impacts
    may be greater, depending upon wave action.
    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
    -------- --------- --------- --------- ------- --------
    10/12 AM 12.2/12.7 1.9/ 2.3 0.8/ 1.3 2-3 None
    10/12 PM 11.3/11.8 1.0/ 1.5 0.4/ 0.9 3 None
    11/01 AM 11.8/12.3 1.5/ 2.0 0.4/ 0.9 3 None
    11/01 PM 11.1/11.6 0.8/ 1.3 0.1/ 0.6 1-2 None
    12/01 AM 10.9/11.4 0.6/ 1.1 -0.2/ 0.3 1 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
    -------- --------- --------- --------- ------- --------
    10/12 AM 12.7/13.2 2.6/ 3.1 0.8/ 1.3 2 None
    10/12 PM 11.6/12.1 1.5/ 2.0 0.2/ 0.8 3 None
    11/01 AM 12.1/12.6 2.0/ 2.5 0.2/ 0.8 4 None
    11/01 PM 11.5/12.0 1.4/ 1.9 0.1/ 0.6 3 None
    12/02 AM 11.3/11.8 1.2/ 1.7 -0.2/ 0.2 2 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
    -------- --------- --------- --------- ------- --------
    10/01 AM 7.4/ 7.9 -0.3/ 0.2 0.8/ 1.3 5 None
    10/01 PM 6.4/ 6.9 -1.4/-0.9 0.2/ 0.8 7 None
    11/02 AM 6.8/ 7.3 -1.0/-0.5 0.2/ 0.8 7 None
    11/02 PM 6.2/ 6.7 -1.6/-1.1 0.0/ 0.5 5-6 None
    12/02 AM 6.1/ 6.6 -1.7/-1.2 -0.2/ 0.2 5 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
    -------- --------- --------- --------- ------- --------
    10/01 AM 5.4/ 5.9 0.9/ 1.4 0.8/ 1.3 2 None
    10/01 PM 4.6/ 5.1 0.1/ 0.6 0.5/ 1.0 3 None
    11/02 AM 4.9/ 5.4 0.4/ 0.9 0.4/ 0.9 3 None
    11/02 PM 4.5/ 5.0 0.0/ 0.5 0.2/ 0.7 3 None
    12/03 AM 4.0/ 4.5 -0.5/ 0.0 -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
    -------- --------- --------- --------- ------- --------
    09/09 PM 3.7/ 4.2 1.8/ 2.2 0.6/ 1.1 2 None
    10/09 AM 3.6/ 4.1 1.6/ 2.0 0.4/ 0.9 3 None
    10/10 PM 3.7/ 4.2 1.8/ 2.2 0.8/ 1.3 3 None
    11/10 AM 3.5/ 4.0 1.5/ 2.0 0.2/ 0.8 2 None
    11/10 PM 2.8/ 3.4 0.9/ 1.4 0.0/ 0.5 2 None
    12/11 AM 2.8/ 3.4 0.9/ 1.4 -0.2/ 0.2 2 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
    -------- --------- --------- --------- ------- --------
    09/09 PM 5.2/ 5.7 0.9/ 1.4 0.0/ 0.5 1-2 None
    10/09 AM 5.7/ 6.2 1.4/ 1.9 0.4/ 0.9 2-3 None
    10/09 PM 6.0/ 6.5 1.7/ 2.2 0.8/ 1.3 2-3 None
    11/10 AM 5.7/ 6.2 1.4/ 1.9 0.4/ 0.9 1 None
    11/10 PM 5.1/ 5.6 0.8/ 1.3 0.1/ 0.6 1 None
    12/11 AM 4.9/ 5.4 0.6/ 1.1 -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
    -------- --------- --------- --------- ------- --------
    10/01 AM 4.2/ 4.7 0.7/ 1.1 0.5/ 1.0 3 None
    10/01 PM 3.9/ 4.4 0.2/ 0.8 0.4/ 0.9 4 None
    11/02 AM 4.0/ 4.5 0.4/ 0.9 0.2/ 0.8 4 None
    11/02 PM 3.7/ 4.2 0.1/ 0.6 0.1/ 0.6 3-4 None
    12/03 AM 3.4/ 3.9 -0.2/ 0.2 -0.2/ 0.2 2-3 None
    Nantucket East Coast - Erosion Impacts
    Total Total Departure
    Day/Time Tide Tide from Norm Waves Flood
    ft MLLW ft MHHW ft ft Impact
    -------- --------- --------- --------- ------- --------
    10/01 AM 4.2/ 4.7 0.2/ 0.7 0.1/ 0.6 5 None
    10/01 PM 4.5/ 5.0 0.4/ 0.9 0.5/ 1.0 7 None
    11/01 AM 4.5/ 5.0 0.4/ 0.9 0.2/ 0.8 6 None
    11/02 PM 4.0/ 4.5 -0.2/ 0.3 0.0/ 0.5 6 None
    12/03 AM 3.7/ 4.2 -0.3/ 0.2 -0.2/ 0.2 5 None
    Nantucket - Madaket Area Erosion Impacts
    Total Total Departure
    Day/Time Tide Tide from Norm Waves Flood
    ft MLLW ft MHHW ft ft Impact
    -------- --------- --------- --------- ------- --------
    10/12 AM 3.6/ 4.1 2.2/ 2.7 0.8/ 1.3 3-4 None
    10/01 PM 3.0/ 3.5 1.6/ 2.0 0.4/ 0.9 5 None
    11/01 AM 3.2/ 3.7 1.9/ 2.3 0.5/ 1.0 5 None
    11/02 PM 2.7/ 3.2 1.4/ 1.9 0.1/ 0.6 4-5 None
    12/02 AM 2.6/ 3.1 1.2/ 1.7 -0.2/ 0.3 4 None
    &&