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Marine Coastal Hazard Message - Issued When Needed
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Coastal Hazard Message
National Weather Service Boston/Norton MA
400 AM EDT Mon Oct 19 2020


MAZ007-015-016-019-022>024-191600-
/O.CON.KBOX.CF.S.0011.201019T1600Z-201019T1900Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Dukes MA-Nantucket MA-
400 AM EDT Mon Oct 19 2020

* WHAT...Up to one foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways (2.7 to 13.6 feet Mean Lower Low Water).

* WHERE...Eastern Norfolk MA, Eastern Plymouth MA, Suffolk MA, 
  Eastern Essex MA, Barnstable MA, Dukes MA and Nantucket MA 
  Counties.

* WHEN...Today from noon to 3 PM EDT.

* IMPACTS...Some water on low lying roads and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

&&

Time of high total tides are approximate to the nearest hour.

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 
 --------  ---------  ---------  ---------  -------  --------
 19/02 AM   9.5/10.0   0.0/ 0.5   0.2/ 0.7     1       None    
 19/02 PM  10.4/10.9   0.9/ 1.4   0.2/ 0.7     1       None    
 20/03 AM   9.2/ 9.7  -0.3/ 0.2   0.2/ 0.7     1       None    
 20/03 PM  10.2/10.7   0.7/ 1.1   0.2/ 0.7     1       None    
 21/03 AM   8.8/ 9.3  -0.8/-0.2   0.2/ 0.7     1       None

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 
 --------  ---------  ---------  ---------  -------  --------
 19/01 AM  11.0/11.5   1.5/ 2.0   0.4/ 0.9     2       None    
 19/02 PM  11.6/12.1   2.1/ 2.6   0.2/ 0.7     3      Minor    
 20/02 AM  10.5/11.0   1.0/ 1.5   0.2/ 0.8     3       None    
 20/03 PM  11.4/11.9   1.9/ 2.3   0.2/ 0.8     4      Minor    
 21/03 AM   9.9/10.4   0.4/ 0.9   0.2/ 0.7     4       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 
 --------  ---------  ---------  ---------  -------  --------
 19/01 AM  11.4/11.9   1.5/ 2.0   0.4/ 0.9     1       None    
 19/02 PM  12.2/12.7   2.2/ 2.7   0.2/ 0.8     1      Minor    
 20/02 AM  10.9/11.4   1.0/ 1.5   0.2/ 0.8     1       None    
 20/03 PM  12.0/12.5   2.1/ 2.6   0.4/ 0.9     1       None    
 21/03 AM  10.3/10.8   0.4/ 0.9   0.2/ 0.8     1       None

Boston Harbor
MLLW Categories - Minor 12.5 ft, Moderate 14.5 ft, Major 16.0 ft
MHHW Categories - Minor 2.4 ft, Moderate 4.4 ft, Major 5.9 ft

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 19/01 AM  11.3/11.8   1.2/ 1.7   0.2/ 0.7     1       None    
 19/02 PM  12.1/12.6   2.0/ 2.5   0.2/ 0.7     1      Minor    
 20/02 AM  10.9/11.4   0.8/ 1.3   0.2/ 0.7     1       None    
 20/03 PM  11.8/12.3   1.7/ 2.2   0.2/ 0.7     1       None    
 21/03 AM  10.3/10.8   0.2/ 0.7   0.2/ 0.7     1       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 
 --------  ---------  ---------  ---------  -------  --------
 19/01 AM  10.7/11.2   1.0/ 1.5   0.2/ 0.7     2       None    
 19/02 PM  11.7/12.2   2.0/ 2.5   0.2/ 0.7     2      Minor    
 20/02 AM  10.3/10.8   0.6/ 1.1   0.2/ 0.7     2       None    
 20/03 PM  11.4/11.9   1.7/ 2.2   0.2/ 0.7     3      Minor    
 21/03 AM   9.9/10.4   0.2/ 0.7   0.2/ 0.7     3       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 
 --------  ---------  ---------  ---------  -------  --------

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 
 --------  ---------  ---------  ---------  -------  --------
 18/10 PM   5.4/ 5.9   1.0/ 1.5   0.6/ 1.1     1       None    
 19/10 AM   5.9/ 6.4   1.5/ 2.0   0.5/ 1.0     1       None    
 19/11 PM   5.1/ 5.6   0.7/ 1.1   0.5/ 1.0     1       None    
 20/11 AM   5.6/ 6.1   1.2/ 1.7   0.5/ 1.0     1       None    
 21/12 AM   4.7/ 5.2   0.2/ 0.8   0.4/ 0.9     1       None    
 21/12 PM   5.2/ 5.7   0.9/ 1.4   0.5/ 1.0     1       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 
 --------  ---------  ---------  ---------  -------  --------
 19/02 AM  11.5/12.0   1.4/ 1.9   0.4/ 0.9     2       None    
 19/02 PM  12.2/12.7   2.1/ 2.6   0.2/ 0.8     2       None    
 20/02 AM  11.0/11.5   0.9/ 1.4   0.4/ 0.9     2       None    
 20/03 PM  12.0/12.5   1.9/ 2.3   0.4/ 0.9    2-3      None    
 21/03 AM  10.4/10.9   0.2/ 0.8   0.2/ 0.8    2-3      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 
 --------  ---------  ---------  ---------  -------  --------
 18/10 PM   3.1/ 3.6   1.1/ 1.6   0.2/ 0.8     1       None    
 19/11 AM   3.5/ 4.0   1.5/ 2.0   0.2/ 0.7     1       None    
 19/11 PM   2.7/ 3.2   0.7/ 1.1   0.1/ 0.6     1       None    
 20/11 AM   3.2/ 3.7   1.2/ 1.7   0.2/ 0.7     1       None    
 21/12 AM   2.5/ 3.0   0.5/ 1.0   0.1/ 0.6     1       None    
 21/12 PM   2.8/ 3.4   0.9/ 1.4   0.1/ 0.6     1       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 
 --------  ---------  ---------  ---------  -------  --------
 19/01 AM  12.1/12.6   1.6/ 2.0   0.6/ 1.1     1       None    
 19/02 PM  12.9/13.4   2.3/ 2.8   0.4/ 0.9     2      Minor    
 20/02 AM  11.7/12.2   1.2/ 1.7   0.5/ 1.0    1-2      None    
 20/03 PM  12.8/13.3   2.2/ 2.7   0.5/ 1.0     2      Minor    
 21/03 AM  11.1/11.6   0.6/ 1.1   0.4/ 0.9    1-2      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 
 --------  ---------  ---------  ---------  -------  --------
 19/02 AM   5.7/ 6.2  -2.0/-1.6   0.4/ 0.9     3       None    
 19/03 PM   6.2/ 6.8  -1.5/-1.0   0.2/ 0.8     3       None    
 20/03 AM   5.5/ 6.0  -2.2/-1.8   0.4/ 0.9     3       None    
 20/03 PM   6.2/ 6.8  -1.5/-1.0   0.4/ 0.9     3       None    
 21/04 AM   5.2/ 5.7  -2.6/-2.1   0.2/ 0.8     3       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 
 --------  ---------  ---------  ---------  -------  --------
 19/01 AM  10.3/10.8   0.0/ 0.5   0.5/ 1.0     1       None    
 19/02 PM  11.1/11.6   0.8/ 1.3   0.4/ 0.9     1       None    
 20/02 AM  10.0/10.5  -0.3/ 0.2   0.5/ 1.0     1       None    
 20/03 PM  10.8/11.3   0.5/ 1.0   0.4/ 0.9     2       None    
 21/03 AM   9.4/ 9.9  -1.0/-0.5   0.4/ 0.9     2       None

Vineyard Haven
MLLW Categories - Minor 5.0 ft, Moderate 6.5 ft, Major 8.5 ft
MHHW Categories - Minor 3.0 ft, Moderate 4.5 ft, Major 6.5 ft

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 19/02 AM   1.9/ 2.3  -0.2/ 0.3   0.0/ 0.5     1       None    
 19/02 PM   2.2/ 2.7   0.2/ 0.7   0.0/ 0.5     1       None    
 20/02 AM   1.8/ 2.2  -0.2/ 0.2   0.0/ 0.5     1       None    
 20/03 PM   2.1/ 2.6   0.1/ 0.6   0.0/ 0.5     1       None    
 21/03 AM   1.7/ 2.2  -0.3/ 0.2   0.0/ 0.5     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 
 --------  ---------  ---------  ---------  -------  --------
 19/02 AM   3.6/ 4.1   0.0/ 0.5   0.2/ 0.8     2       None    
 19/03 PM   4.2/ 4.7   0.7/ 1.1   0.2/ 0.8     2       None    
 20/03 AM   3.6/ 4.1   0.0/ 0.5   0.4/ 0.9     2       None    
 20/04 PM   4.2/ 4.7   0.7/ 1.1   0.2/ 0.8     2       None    
 21/04 AM   3.2/ 3.7  -0.5/ 0.0   0.2/ 0.7     2       None

&&

$$

 

 



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