Coastal Flood Advisory - 06/14/18 1:37 P.M.

Flooding possible around hours of high tide
Flooding at Sandy Neck during one of the March 2018 nor'easters (Town of Barnstable photo)

From the National Weather Service:

 

 

 

 

Coastal Hazard Message
National Weather Service Boston/Norton MA
137 PM EDT Thu Jun 14 2018

MAZ007-015-016-019-022-024-150145-
/O.CAN.KBOX.CF.S.0007.180615T0300Z-180615T0600Z/
/O.NEW.KBOX.CF.Y.0014.180615T0300Z-180615T0700Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Nantucket MA-
137 PM EDT Thu Jun 14 2018

...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
3 AM EDT FRIDAY...

...Pockets of Minor Coastal Flooding Possible Overnight...

* LOCATIONS..The eastern MA coastline.

* TIMING...Within a couple hours on either side of the late night
  and very early Friday morning high tide cycle.

* COASTAL FLOOD IMPACTS...Pockets of minor coastal flooding are
  possible in the typically most vulnerable locations during the
  late night and very early Friday morning high tide cycle. A few
  of the vulnerable shoreline roadways may become briefly flooded
  within an hour or two of high tide. This is not expected to be a
  significant event and property damage is not anticipated.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory is issued for minor coastal flooding of
the most vulnerable shore roads and/or basements due to the
height of storm tide or wave splashover. The majority of roads
remain passable with only isolated closures. There is no
significant threat to life...and impact on property is minimal.

&&

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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM   9.1/ 9.6  -0.5/ 0.0   0.5/ 1.0     2       None
 15/01 AM  10.7/11.2   1.2/ 1.7   0.5/ 1.0     2       None
 15/01 PM   9.2/ 9.7  -0.3/ 0.2   0.5/ 1.0     2       None
 16/02 AM  10.7/11.2   1.2/ 1.7   0.5/ 1.0     1       None
 16/02 PM   8.6/ 9.1  -1.0/-0.5  -0.2/ 0.2     1       None
 17/03 AM   9.9/10.4   0.4/ 0.9  -0.2/ 0.2     1       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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM  10.1/10.6   0.6/ 1.1   0.6/ 1.1     2       None
 15/01 AM  12.0/12.5   2.5/ 3.0   0.7/ 1.1     2      Minor
 15/01 PM  10.5/11.0   1.0/ 1.5   0.6/ 1.1     2       None
 16/01 AM  11.9/12.4   2.3/ 2.8   0.5/ 1.0     2      Minor
 16/02 PM   9.7/10.2   0.2/ 0.7  -0.2/ 0.2     1       None
 17/02 AM  11.0/11.5   1.5/ 2.0  -0.2/ 0.2    1-2      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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM  10.6/11.1   0.5/ 1.0   0.5/ 1.0     2       None
 15/01 AM  12.5/13.0   2.3/ 2.8   0.5/ 1.0     1      Minor
 15/01 PM  11.0/11.5   0.9/ 1.4   0.5/ 1.0     1       None
 16/01 AM  12.5/13.0   2.3/ 2.8   0.5/ 1.0     1      Minor
 16/02 PM  10.3/10.8   0.2/ 0.7  -0.2/ 0.2     1       None
 17/02 AM  11.6/12.1   1.5/ 2.0  -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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM  10.5/11.0   0.6/ 1.1   0.5/ 1.0    1-2      None
 15/01 AM  12.4/12.9   2.5/ 3.0   0.5/ 1.0    1-2      None
 15/01 PM  10.9/11.4   1.0/ 1.5   0.5/ 1.0     2       None
 16/01 AM  12.3/12.8   2.3/ 2.8   0.5/ 1.0     2       None
 16/02 PM  10.2/10.7   0.2/ 0.8  -0.2/ 0.2     1       None
 17/02 AM  11.5/12.0   1.6/ 2.0  -0.2/ 0.2     1       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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM   9.8/10.3   0.1/ 0.6   0.5/ 1.0     2       None
 15/01 AM  11.8/12.3   2.1/ 2.6   0.5/ 1.0    1-2     Minor
 15/01 PM  10.3/10.8   0.6/ 1.1   0.5/ 1.0     2       None
 16/01 AM  11.8/12.3   2.1/ 2.6   0.5/ 1.0     2      Minor
 16/02 PM   9.6/10.1  -0.2/ 0.3  -0.2/ 0.2     1       None
 17/02 AM  11.0/11.5   1.3/ 1.8  -0.2/ 0.2     1       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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM  10.3/10.8   0.0/ 0.5   0.5/ 1.0    1-2      None
 15/01 AM  12.4/12.9   2.1/ 2.6   0.7/ 1.1    1-2      None
 15/01 PM  10.8/11.3   0.5/ 1.0   0.6/ 1.1     2       None
 16/01 AM  12.1/12.6   1.8/ 2.2   0.5/ 1.0     1       None
 16/02 PM  10.0/10.5  -0.3/ 0.2  -0.2/ 0.2     1       None
 17/02 AM  11.3/11.8   1.0/ 1.5  -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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM  11.0/11.5   0.9/ 1.4   0.6/ 1.1     1       None
 15/01 AM  13.0/13.5   2.8/ 3.4   0.7/ 1.1     1       None
 15/01 PM  11.3/11.8   1.2/ 1.7   0.6/ 1.1     1       None
 16/02 AM  12.7/13.2   2.6/ 3.1   0.5/ 1.0     1       None
 16/02 PM  10.6/11.1   0.5/ 1.0  -0.2/ 0.2     1       None
 17/02 AM  11.8/12.3   1.7/ 2.2  -0.2/ 0.2     1       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
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM   5.9/ 6.4  -1.9/-1.4   0.5/ 1.0    2-3      None
 15/01 AM   7.5/ 8.0  -0.2/ 0.2   0.7/ 1.1     2       None
 15/02 PM   6.1/ 6.6  -1.7/-1.2   0.6/ 1.1     3       None
 16/02 AM   7.4/ 7.9  -0.3/ 0.2   0.5/ 1.0     2       None
 16/03 PM   5.4/ 5.9  -2.3/-1.9  -0.2/ 0.2     2       None
 17/03 AM   6.6/ 7.1  -1.1/-0.7  -0.2/ 0.2     2       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
 --------  ---------  ---------  ---------  -------  --------
 14/02 PM   4.0/ 4.5  -0.6/-0.1   0.5/ 1.0    1-2      None
 15/01 AM   5.2/ 5.7   0.7/ 1.1   0.5/ 1.0     1       None
 15/02 PM   4.0/ 4.5  -0.5/ 0.0   0.5/ 1.0     1       None
 16/02 AM   5.2/ 5.7   0.7/ 1.1   0.5/ 1.0     2       None
 16/03 PM   3.5/ 4.0  -1.1/-0.6  -0.2/ 0.2     1       None
 17/03 AM   4.5/ 5.0   0.0/ 0.5  -0.2/ 0.2     1       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
 --------  ---------  ---------  ---------  -------  --------
 14/10 PM   3.0/ 3.5   1.0/ 1.5  -0.2/ 0.2     1       None
 15/10 AM   2.6/ 3.1   0.6/ 1.1  -0.2/ 0.3     1       None
 15/11 PM   3.1/ 3.6   1.1/ 1.6  -0.2/ 0.3     1       None
 16/11 AM   2.5/ 3.0   0.5/ 1.0  -0.2/ 0.2     1       None
 16/11 PM   2.8/ 3.4   0.9/ 1.4  -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
 --------  ---------  ---------  ---------  -------  --------
 14/09 PM   5.2/ 5.7   0.9/ 1.4  -0.2/ 0.2     1       None
 15/10 AM   4.5/ 5.0   0.2/ 0.7  -0.2/ 0.3     1       None
 15/10 PM   5.2/ 5.7   1.0/ 1.5   0.0/ 0.5     1       None
 16/11 AM   4.4/ 4.9   0.1/ 0.6  -0.2/ 0.2     1       None
 16/11 PM   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
 --------  ---------  ---------  ---------  -------  --------
 14/02 PM   3.4/ 3.9  -0.2/ 0.2   0.5/ 1.0     1       None
 15/02 AM   4.5/ 5.0   0.9/ 1.4   0.5/ 1.0     1       None
 15/02 PM   3.5/ 4.0  -0.2/ 0.3   0.5/ 1.0    1-2      None
 16/03 AM   4.5/ 5.0   0.9/ 1.4   0.5/ 1.0     2       None
 16/03 PM   2.8/ 3.4  -0.8/-0.2  -0.2/ 0.2     1       None
 17/04 AM   3.7/ 4.2   0.1/ 0.6  -0.2/ 0.2    1-2      None

Nantucket East Coast - Erosion Impacts

             Total      Total    Departure
 Day/Time    Tide       Tide     from Norm   Waves    Flood
            ft MLLW    ft MHHW       ft       ft      Impact
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM   3.9/ 4.4  -0.2/ 0.2   0.5/ 1.0     3       None
 15/01 AM   5.2/ 5.7   1.1/ 1.6   0.7/ 1.1    2-3      None
 15/02 PM   4.2/ 4.7   0.1/ 0.6   0.7/ 1.1    2-3      None
 16/02 AM   5.0/ 5.5   0.9/ 1.4   0.5/ 1.0     2       None
 16/03 PM   3.4/ 3.9  -0.8/-0.2  -0.2/ 0.2     2       None
 17/03 AM   4.2/ 4.7   0.1/ 0.6  -0.2/ 0.2     2       None

Nantucket - Madaket Area Erosion Impacts

             Total      Total    Departure
 Day/Time    Tide       Tide     from Norm   Waves    Flood
            ft MLLW    ft MHHW       ft       ft      Impact
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM   2.8/ 3.4   1.5/ 2.0   0.5/ 1.0    4-5      None
 15/01 AM   3.4/ 3.9   2.0/ 2.5   0.5/ 1.0    3-4      None
 15/02 PM   2.8/ 3.4   1.5/ 2.0   0.5/ 1.0    2-3      None
 16/02 AM   3.4/ 3.9   2.0/ 2.5   0.5/ 1.0     2       None
 16/03 PM   2.2/ 2.7   0.8/ 1.3  -0.2/ 0.2     2       None
 17/03 AM   2.7/ 3.2   1.3/ 1.8  -0.2/ 0.2    2-3      None

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