Coastal Flood Warnings/Watches/Statements
Issued by NWS Boston, MA
Issued by NWS Boston, MA
053
WHUS41 KBOX 191922
CFWBOX
Coastal Hazard Message
National Weather Service Boston/Norton MA
322 PM EDT Thu Sep 19 2024
MAZ007-019-022-024-200830-
/O.CON.KBOX.SU.Y.0006.240920T1100Z-240920T2300Z/
/O.CON.KBOX.CF.A.0006.240920T1500Z-240920T2200Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Nantucket MA-
322 PM EDT Thu Sep 19 2024
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 AM TO 7 PM EDT
FRIDAY...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY AFTERNOON...
* WHAT...For the High Surf Advisory, large breaking waves expected
in the surf zone. For the Coastal Flood Watch, one to two feet
of inundation above ground level possible in low-lying areas
near shorelines and tidal waterways.
* WHERE...Northeast Massachusetts, Eastern Plymouth to the Cape
and Nantucket.
* WHEN...For the High Surf Advisory, from 7 AM to 7 PM EDT
Friday. For the Coastal Flood Watch, from Friday morning
through Friday afternoon.
* IMPACTS...Some coastal roads become impassable around high
tide. Flooding 1 to 2 feet deep affects roads on the North
Shore from Salem and Marblehead to Gloucester to Newburyport.
Rough surf will cause beach erosion and send and debris onto
coastal roads. Many roads near Nantucket Harbor become
impassable with 1 to 2 feet of water and affects access to the
ferry terminals. This includes Easy Street, South Beach
Street, Easton Street, Walsh Street, Willard Street, and
Straight Wharf. Roads remain passable. Shallow pockets of
flooding less than one foot deep affect low lying areas in
Provincetown, mainly near the airport and Race Point Road. In
Truro, flooding up to one foot deep affects low lying areas
near Pamet Harbor and along the Pamet River. Dangerous
swimming and surfing conditions and localized beach erosion.
* ADDITIONAL DETAILS...Greatest risk of moderate coastal flooding
is along the Plymouth coastline, including the north shore of
Cape Cod (Bay side), from Sandwich to Dennis.
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.
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
&&
&&
Time of high total tides are approximate to the nearest hour.
Gloucester Harbor
MLLW Categories - Minor 11.5 ft, Moderate 13.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.0 ft, Moderate 3.5 ft, Major 5.5 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 11.3/11.8 1.8/ 2.2 0.6/ 1.1 6-7 Minor
20/01 PM 12.5/13.0 3.0/ 3.5 1.4/ 1.9 10-11 Minor
21/02 AM 11.4/11.9 1.9/ 2.3 1.0/ 1.5 10 Minor
21/02 PM 12.0/12.5 2.5/ 3.0 1.0/ 1.5 9 Minor
22/03 AM 10.9/11.4 1.4/ 1.9 1.0/ 1.5 7-8 None
Merrimack River near Newburyport MA
MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.5 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 4.0 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 10.0/10.5 0.5/ 1.0 0.5/ 1.0 5 None
20/02 PM 11.4/11.9 1.9/ 2.3 1.5/ 2.0 8 Minor
21/02 AM 10.2/10.7 0.7/ 1.1 1.0/ 1.5 7 None
21/03 PM 11.0/11.5 1.5/ 2.0 1.0/ 1.5 8 Minor
22/03 AM 9.8/10.3 0.2/ 0.8 1.0/ 1.5 7 None
Scituate MA
MLLW Categories - Minor 11.5 ft, Moderate 13.5 ft, Major 15.5 ft
MHHW Categories - Minor 1.8 ft, Moderate 3.8 ft, Major 5.8 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 11.6/12.1 1.9/ 2.3 1.0/ 1.5 6-7 Minor
20/01 PM 13.0/13.5 3.2/ 3.7 1.8/ 2.2 9-10 Minor
21/02 AM 11.9/12.4 2.2/ 2.7 1.5/ 2.0 9 Minor
21/02 PM 12.5/13.0 2.7/ 3.2 1.3/ 1.8 8 Minor
22/03 AM 11.2/11.7 1.5/ 2.0 1.3/ 1.8 7 None
Buzzards Bay at 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
-------- --------- --------- --------- ------- --------
19/10 PM 3.2/ 3.7 1.3/ 1.8 0.4/ 0.9 5 None
20/11 AM 4.6/ 5.1 2.6/ 3.1 1.5/ 2.0 6 None
20/11 PM 3.7/ 4.2 1.7/ 2.2 1.0/ 1.5 5 None
21/11 AM 4.0/ 4.5 2.1/ 2.6 1.0/ 1.5 4-5 None
22/12 AM 3.6/ 4.1 1.6/ 2.0 1.1/ 1.6 3 None
22/12 PM 4.0/ 4.5 2.0/ 2.5 1.0/ 1.5 4 None
Chatham MA - East Coast
MLLW Categories - Minor 9.0 ft, Moderate 11.5 ft, Major 13.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 3.8 ft, Major 5.3 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/02 AM 6.6/ 7.1 -1.1/-0.7 0.9/ 1.4 9 None
20/02 PM 7.6/ 8.1 -0.2/ 0.3 1.6/ 2.0 11 None
21/03 AM 6.7/ 7.2 -1.1/-0.6 1.2/ 1.7 10 None
21/03 PM 7.3/ 7.8 -0.5/ 0.0 1.2/ 1.7 8 None
22/04 AM 6.4/ 6.9 -1.4/-0.9 1.2/ 1.7 7 None
Chatham - South side
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
-------- --------- --------- --------- ------- --------
20/02 AM 5.5/ 6.0 1.0/ 1.5 1.0/ 1.5 8 None
20/02 PM 6.5/ 7.0 2.0/ 2.5 1.6/ 2.0 9-10 None
21/03 AM 5.5/ 6.0 1.0/ 1.5 1.2/ 1.7 8-9 None
21/03 PM 6.2/ 6.7 1.7/ 2.2 1.2/ 1.7 6 None
22/04 AM 5.2/ 5.7 0.8/ 1.3 1.2/ 1.7 6 None
Provincetown Harbor
MLLW Categories - Minor 13.0 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.9 ft, Moderate 3.9 ft, Major 4.9 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 12.2/12.7 2.1/ 2.6 0.9/ 1.4 8 None
20/02 PM 13.4/13.9 3.2/ 3.7 1.7/ 2.2 10-11 Minor
21/02 AM 12.3/12.8 2.2/ 2.7 1.3/ 1.8 10 None
21/02 PM 12.8/13.3 2.7/ 3.2 1.2/ 1.7 6 Minor
22/03 AM 11.6/12.1 1.5/ 2.0 1.2/ 1.7 5 None
Dennis - Sesuit Harbor
MLLW Categories - Minor 13.0 ft, Moderate 14.5 ft, Major 16.0 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
-------- --------- --------- --------- ------- --------
20/01 AM 12.8/13.3 2.2/ 2.7 1.1/ 1.6 6 Minor
20/02 PM 14.3/14.8 3.7/ 4.2 2.1/ 2.6 7-8 Moderate
21/02 AM 13.2/13.7 2.7/ 3.2 1.8/ 2.2 7 Minor
21/02 PM 13.8/14.3 3.2/ 3.7 1.6/ 2.0 5-6 Minor
22/03 AM 12.3/12.8 1.8/ 2.2 1.4/ 1.9 5 None
Sandwich Harbor
MLLW Categories - Minor 12.0 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 1.7 ft, Moderate 3.7 ft, Major 4.7 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 11.6/12.1 1.3/ 1.8 1.6/ 2.0 5 None
20/02 PM 13.0/13.5 2.7/ 3.2 2.7/ 3.2 6-8 Minor
21/02 AM 11.9/12.4 1.6/ 2.0 2.2/ 2.7 7 Minor
21/02 PM 12.4/12.9 2.1/ 2.6 2.0/ 2.5 6 Minor
22/03 AM 11.2/11.7 0.9/ 1.4 2.0/ 2.5 5 None
Wings Neck
MLLW Categories - Minor 6.5 ft, Moderate 9.0 ft, Major 11.5 ft
MHHW Categories - Minor 2.1 ft, Moderate 4.6 ft, Major 7.1 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
19/10 PM 4.5/ 5.0 0.1/ 0.6 -0.5/ 0.0 4 None
20/11 AM 6.1/ 6.6 1.7/ 2.2 0.9/ 1.4 6 None
20/11 PM 5.0/ 5.5 0.6/ 1.1 0.2/ 0.8 5 None
21/12 PM 5.6/ 6.1 1.2/ 1.7 0.7/ 1.1 5-6 None
22/12 AM 4.9/ 5.4 0.5/ 1.0 0.6/ 1.1 6 None
22/12 PM 5.4/ 5.9 1.0/ 1.5 0.4/ 0.9 6-7 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
-------- --------- --------- --------- ------- --------
20/02 AM 4.7/ 5.2 1.1/ 1.6 1.2/ 1.7 8 None
20/02 PM 5.9/ 6.4 2.2/ 2.7 2.1/ 2.6 10 Minor
21/03 AM 4.9/ 5.4 1.3/ 1.8 1.5/ 2.0 8-9 Minor
21/03 PM 5.5/ 6.0 1.9/ 2.3 1.6/ 2.0 6 Minor
22/04 AM 4.6/ 5.1 1.0/ 1.5 1.4/ 1.9 6 None
&&
$$
MAZ023-200830-
/O.CON.KBOX.CF.A.0006.240920T1500Z-240920T2200Z/
/O.CON.KBOX.RP.S.0009.000000T0000Z-240920T2300Z/
Dukes MA-
322 PM EDT Thu Sep 19 2024
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH FRIDAY
EVENING...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY AFTERNOON...
* WHAT...For the High Rip Current Risk, dangerous rip currents.
For the Coastal Flood Watch, up to one foot of inundation
above ground level possible in low-lying areas near shorelines
and tidal waterways.
* WHERE...Martha`s Vineyard.
* WHEN...For the High Rip Current Risk, through Friday evening.
For the Coastal Flood Watch, from Friday morning through
Friday afternoon.
* IMPACTS...Roads remain passable with pockets of shallow
flooding less than one foot deep. This mainly affects low
lying areas and roads near Edgartown Harbor, including the
Chappy Ferry Dock. Shallow flooding may also approach Five
Corners in Vineyard Haven. Rip currents can sweep even the
best swimmers away from shore into deeper water.
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.
Swim near a lifeguard. If caught in a rip current, relax and
float. Don`t swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.
&&
&&
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 3.2 ft, Moderate 4.2 ft, Major 6.2 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/02 AM 3.2/ 3.7 2.5/ 3.0 1.1/ 1.6 6 None
20/03 PM 4.5/ 5.0 3.7/ 4.2 2.0/ 2.5 7 Minor
21/03 AM 3.7/ 4.2 2.8/ 3.4 1.6/ 2.0 6 None
21/03 PM 4.2/ 4.7 3.5/ 4.0 1.6/ 2.0 3 Minor
22/04 AM 3.6/ 4.1 2.7/ 3.2 1.6/ 2.0 2 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
-------- --------- --------- --------- ------- --------
20/02 AM 3.1/ 3.6 1.1/ 1.6 1.1/ 1.6 5 None
20/02 PM 4.0/ 4.5 2.0/ 2.5 1.8/ 2.2 6 None
21/03 AM 3.4/ 3.9 1.4/ 1.9 1.6/ 2.0 5 None
21/03 PM 3.7/ 4.2 1.7/ 2.2 1.6/ 2.0 4 None
22/04 AM 3.2/ 3.7 1.3/ 1.8 1.6/ 2.0 4 None
&&
$$
MAZ015-016-200830-
/O.CON.KBOX.CF.A.0006.240920T1500Z-240920T2200Z/
Suffolk MA-Eastern Norfolk MA-
322 PM EDT Thu Sep 19 2024
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY AFTERNOON...
* WHAT...One to two feet of inundation above ground level
possible in low-lying areas near shorelines and tidal
waterways.
* WHERE...Boston area.
* WHEN...From Friday morning through Friday afternoon.
* IMPACTS...Some vulnerable coastal roads become impassable
around high tide. Flooding 1 to 2 feet deep affects some
coastal roads and low lying areas from Revere and Winthrop
through Boston to Hull, Braintree, and Quincy. Splashover and
debris may wash onto coastal roads when large waves occur.
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.
Boston Harbor
MLLW Categories - Minor 12.5 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.4 ft, Moderate 3.9 ft, Major 4.9 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 12.2/12.7 2.1/ 2.6 1.0/ 1.5 2 None
20/01 PM 13.5/14.0 3.4/ 3.9 1.9/ 2.3 2 Minor
21/02 AM 12.4/12.9 2.2/ 2.7 1.6/ 2.0 2 Minor
21/02 PM 12.8/13.3 2.7/ 3.2 1.3/ 1.8 2 Minor
22/03 AM 11.7/12.2 1.6/ 2.0 1.4/ 1.9 2 None
Revere
MLLW Categories - Minor 12.5 ft, Moderate 14.5 ft, Major 16.0 ft
MHHW Categories - Minor 2.6 ft, Moderate 4.6 ft, Major 6.1 ft
Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
20/01 AM 12.2/12.7 2.2/ 2.7 1.0/ 1.5 2 None
20/01 PM 13.4/13.9 3.5/ 4.0 1.8/ 2.2 2 Minor
21/02 AM 12.3/12.8 2.3/ 2.8 1.5/ 2.0 2 Minor
21/02 PM 12.8/13.3 2.8/ 3.4 1.3/ 1.8 2 Minor
22/03 AM 11.6/12.1 1.7/ 2.2 1.3/ 1.8 1-2 None
&&
$$
RIZ006>008-200830-
/O.CON.KBOX.RP.S.0009.000000T0000Z-240920T2300Z/
Washington RI-Newport RI-Block Island RI-
322 PM EDT Thu Sep 19 2024
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH FRIDAY
EVENING...
* WHAT...Dangerous rip currents.
* WHERE...Coastal Rhode Island.
* WHEN...Through Friday evening.
* IMPACTS...Rip currents can sweep even the best swimmers away
from shore into deeper water.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Swim near a lifeguard. If caught in a rip current, relax and
float. Don`t swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.
&&
$$
CH