- 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
&&