- Coastal Flood Advisory for Nantucket County, Massachusetts
- Coastal Flood Advisory issued September 10 at 10:03PM EDT until September 11 at 2:00AM EDT by NWS
- Effective: Monday, September 10, 2018 at 10 p.m.
- Expires: Tuesday, September 11, 2018 at 1 a.m.
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY...
* LOCATIONS...Eastern Massachusetts coastline, including Cape Cod
and Nantucket.
* TIMING...Around high tide tonight, between 11PM and 2AM.
* COASTAL FLOOD IMPACTS...Up to one half foot of saltwater
inundation above ground level is possible in low-lying areas
near shorelines. Wave action will likely cause some
washover onto coastal roads around the time of high tide. Minor
flooding of low-lying coastal sections in Cape Cod Bay is
possible. Some immediate coastal roads may be flooded for a
short time nearest high tide due to large surf and high tides.
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.
Newburyport
MLLW Categories - Minor 11.0 FT, Moderate 12.5 FT, Major 14.0 FT
MHHW Categories - Minor 1.5 FT, Moderate 3.0 FT, Major 4.5 FT
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
11/01 AM 10.1/10.6 0.6/ 1.1 0.2/ 0.8 7 None
11/01 PM 9.3/ 9.8 -0.2/ 0.2 -0.2/ 0.2 6 None
12/02 AM 9.3/ 9.8 -0.2/ 0.2 -0.2/ 0.2 4-5 None
12/02 PM 9.3/ 9.8 -0.2/ 0.2 -0.2/ 0.2 4 None
13/03 AM 9.0/ 9.5 -0.6/-0.1 -0.2/ 0.2 4 None
Gloucester Harbor
MLLW Categories - Minor 12.0 FT, Moderate 14.5 FT, Major 15.5 FT
MHHW Categories - Minor 2.5 FT, Moderate 5.0 FT, Major 6.0 FT
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
11/01 AM 11.4/11.9 1.9/ 2.3 0.4/ 0.9 8 None
11/01 PM 10.9/11.4 1.4/ 1.9 0.2/ 0.7 7 None
12/01 AM 10.6/11.1 1.1/ 1.6 -0.2/ 0.3 5 None
12/02 PM 10.4/10.9 0.9/ 1.4 -0.2/ 0.2 4 None
13/02 AM 10.1/10.6 0.6/ 1.1 -0.2/ 0.2 4-5 None
Boston Harbor
MLLW Categories - Minor 12.5 FT, Moderate 15.0 FT, Major 16.0 FT
MHHW Categories - Minor 2.4 FT, Moderate 4.9 FT, Major 5.9 FT
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
11/01 AM 12.1/12.6 2.0/ 2.5 0.5/ 1.0 2 Minor
11/01 PM 11.0/11.5 0.9/ 1.4 -0.2/ 0.2 1-2 None
12/02 AM 11.1/11.6 1.0/ 1.5 -0.2/ 0.2 1 None
12/02 PM 10.9/11.4 0.8/ 1.3 -0.2/ 0.2 1 None
13/02 AM 10.6/11.1 0.5/ 1.0 -0.2/ 0.2 1 None
Revere
MLLW Categories - Minor 12.5 FT, Moderate 15.0 FT, Major 16.5 FT
MHHW Categories - Minor 2.6 FT, Moderate 5.1 FT, Major 6.6 FT
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
11/01 AM 11.9/12.4 2.0/ 2.5 0.5/ 1.0 7 None
11/01 PM 11.3/11.8 1.4/ 1.9 0.2/ 0.7 5 None
12/02 AM 11.0/11.5 1.1/ 1.6 -0.2/ 0.3 3-4 None
12/02 PM 10.8/11.3 0.9/ 1.4 -0.2/ 0.2 3 None
13/02 AM 10.5/11.0 0.6/ 1.1 -0.2/ 0.2 3 None
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
-------- --------- --------- --------- ------- --------
11/01 AM 11.1/11.6 1.4/ 1.9 0.1/ 0.6 7 None
11/01 PM 10.5/11.0 0.8/ 1.3 -0.2/ 0.3 5 None
12/02 AM 10.5/11.0 0.8/ 1.3 -0.2/ 0.2 3-4 None
12/02 PM 10.4/10.9 0.7/ 1.1 -0.2/ 0.2 3 None
13/02 AM 10.1/10.6 0.4/ 0.9 -0.2/ 0.2 3 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
-------- --------- --------- --------- ------- --------
11/01 AM 12.4/12.9 2.1/ 2.6 1.0/ 1.5 3-4 None
11/01 PM 11.1/11.6 0.8/ 1.3 0.1/ 0.6 2 None
12/01 AM 10.9/11.4 0.6/ 1.1 -0.2/ 0.3 1 None
12/02 PM 10.8/11.3 0.5/ 1.0 -0.2/ 0.2 1 None
13/02 AM 10.4/10.9 0.1/ 0.6 -0.2/ 0.2 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
-------- --------- --------- --------- ------- --------
11/01 AM 12.6/13.1 2.5/ 3.0 0.8/ 1.3 3 None
11/01 PM 11.5/12.0 1.4/ 1.9 0.1/ 0.6 2-3 None
12/02 AM 11.4/11.9 1.3/ 1.8 -0.2/ 0.3 1 None
12/02 PM 11.2/11.7 1.1/ 1.6 -0.2/ 0.2 2 None
13/02 AM 10.9/11.4 0.8/ 1.3 -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
-------- --------- --------- --------- ------- --------
11/02 AM 8.0/ 8.5 0.2/ 0.8 1.5/ 2.0 7-8 None
11/02 PM 6.2/ 6.8 -1.5/-1.0 0.1/ 0.6 6 None
12/02 AM 6.2/ 6.7 -1.6/-1.1 -0.2/ 0.3 4-5 None
12/03 PM 6.0/ 6.5 -1.8/-1.3 -0.2/ 0.2 4 None
13/03 AM 5.7/ 6.2 -2.0/-1.5 -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
-------- --------- --------- --------- ------- --------
11/02 AM 5.7/ 6.2 1.2/ 1.7 1.2/ 1.7 3 None
11/02 PM 4.5/ 5.0 0.0/ 0.5 0.2/ 0.7 2 None
12/03 AM 4.2/ 4.7 -0.3/ 0.2 -0.2/ 0.3 1 None
12/03 PM 4.0/ 4.5 -0.5/ 0.0 -0.2/ 0.2 3 None
13/03 AM 3.9/ 4.4 -0.7/-0.2 -0.2/ 0.2 3 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
-------- --------- --------- --------- ------- --------
10/10 PM 3.7/ 4.2 1.7/ 2.2 0.7/ 1.1 3 None
11/10 AM 3.6/ 4.1 1.6/ 2.0 0.4/ 0.9 2 None
11/10 PM 2.8/ 3.4 0.9/ 1.4 0.0/ 0.5 1 None
12/11 AM 2.8/ 3.4 0.9/ 1.4 -0.2/ 0.2 1-2 None
12/11 PM 2.5/ 3.0 0.5/ 1.0 -0.2/ 0.2 2 None
13/12 PM 2.7/ 3.2 0.7/ 1.1 -0.2/ 0.2 2-3 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
-------- --------- --------- --------- ------- --------
10/09 PM 6.5/ 7.0 2.2/ 2.7 1.3/ 1.8 1-2 None
11/10 AM 5.7/ 6.2 1.5/ 2.0 0.5/ 1.0 2 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
12/11 PM 4.6/ 5.1 0.2/ 0.8 -0.2/ 0.3 1 None
13/11 AM 4.7/ 5.2 0.5/ 1.0 -0.2/ 0.3 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
-------- --------- --------- --------- ------- --------
11/02 AM 4.2/ 4.7 0.6/ 1.1 0.5/ 1.0 3 None
11/02 PM 3.7/ 4.2 0.1/ 0.6 0.1/ 0.6 2 None
12/03 AM 3.5/ 4.0 -0.2/ 0.3 -0.2/ 0.3 1 None
12/03 PM 3.4/ 3.9 -0.2/ 0.2 -0.2/ 0.2 3 None
13/04 AM 3.2/ 3.7 -0.5/ 0.0 -0.2/ 0.2 4 None
Nantucket East Coast - Erosion Impacts
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
11/01 AM 4.7/ 5.2 0.7/ 1.1 0.6/ 1.1 6-7 None
11/02 PM 4.0/ 4.5 0.0/ 0.5 0.1/ 0.6 5-6 None
12/03 AM 3.7/ 4.2 -0.3/ 0.2 -0.2/ 0.2 4 None
12/03 PM 3.9/ 4.4 -0.2/ 0.2 -0.2/ 0.2 4-5 None
13/03 AM 3.7/ 4.2 -0.5/ 0.0 -0.2/ 0.2 6 None
Nantucket - Madaket Area Erosion Impacts
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
11/01 AM 3.2/ 3.7 1.8/ 2.2 0.4/ 0.9 5 None
11/02 PM 2.8/ 3.4 1.5/ 2.0 0.2/ 0.7 4-5 None
12/02 AM 2.6/ 3.1 1.2/ 1.7 -0.2/ 0.3 3-4 None
12/03 PM 2.5/ 3.0 1.1/ 1.6 -0.2/ 0.2 4 None
13/03 AM 2.3/ 2.8 1.0/ 1.5 -0.2/ 0.2 5-6 None
&&