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Marine Coastal Hazard Message - Issued When Needed
Check the date

Expires:202101162000;Remove:202101162000;008771
WHUS41 KBOX 161500
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
1000 AM EST Sat Jan 16 2021


MAZ007-015-019-162000-
/O.CON.KBOX.CF.Y.0003.000000T0000Z-210116T2000Z/
Eastern Essex MA-Suffolk MA-Eastern Plymouth MA-
1000 AM EST Sat Jan 16 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...

* WHAT...Up to one half foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways (9.8 to 12.0 feet Mean Lower Low Water).

* WHERE...Suffolk MA, Eastern Essex MA and Eastern Plymouth MA 
  Counties.

* WHEN...Until 3 PM EST this afternoon.

* IMPACTS...Minor coastal flooding is expected along the North 
  Shore from Gloucester to Newburyport. Wave action will likely 
  cause some washover onto coastal roads around the time of high 
  tide.

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.

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 
 --------  ---------  ---------  ---------  -------  --------
 16/02 PM   9.6/10.1   0.1/ 0.6   0.8/ 1.3     1       None    
 17/02 AM   7.8/ 8.4  -1.7/-1.2   0.1/ 0.6     1       None    
 17/02 PM   8.2/ 8.7  -1.4/-0.9  -0.2/ 0.2     1       None    
 18/03 AM   7.6/ 8.1  -2.0/-1.5  -0.2/ 0.2     1       None    
 18/03 PM   7.8/ 8.3  -1.8/-1.3  -0.2/ 0.2     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 
 --------  ---------  ---------  ---------  -------  --------
 16/01 PM  11.3/11.8   1.8/ 2.2   1.4/ 1.9   15-18    Minor    
 17/02 AM   9.7/10.2   0.2/ 0.7   0.8/ 1.3    8-9      None    
 17/02 PM   9.5/10.0   0.0/ 0.5   0.0/ 0.5    6-7      None    
 18/03 AM   8.5/ 9.0  -1.1/-0.6  -0.2/ 0.2    3-4      None    
 18/03 PM   8.9/ 9.4  -0.7/-0.2   0.0/ 0.5     3       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 
 --------  ---------  ---------  ---------  -------  --------
 16/01 PM  11.8/12.3   1.9/ 2.3   1.4/ 1.9     5       None    
 17/02 AM  10.0/10.5   0.1/ 0.6   0.7/ 1.1    2-3      None    
 17/02 PM   9.8/10.3  -0.2/ 0.3  -0.2/ 0.3    1-2      None    
 18/03 AM   8.8/ 9.3  -1.1/-0.7  -0.2/ 0.2     1       None    
 18/03 PM   9.3/ 9.8  -0.7/-0.2   0.0/ 0.5     2       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 
 --------  ---------  ---------  ---------  -------  --------
 16/01 PM  11.6/12.1   1.5/ 2.0   1.2/ 1.7     9       None    
 17/02 AM   9.1/ 9.6  -1.1/-0.6  -0.2/ 0.2     5       None    
 17/02 PM   9.7/10.2  -0.5/ 0.0  -0.2/ 0.2    3-4      None    
 18/03 AM   8.9/ 9.4  -1.3/-0.8  -0.2/ 0.2     2       None    
 18/03 PM   9.1/ 9.6  -1.1/-0.6  -0.2/ 0.2     2       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 
 --------  ---------  ---------  ---------  -------  --------
 16/01 PM  11.6/12.1   1.9/ 2.3   1.5/ 2.0   10-12    Minor    
 17/02 AM   9.9/10.4   0.2/ 0.7   0.9/ 1.4    6-7      None    
 17/02 PM   9.7/10.2   0.0/ 0.5   0.1/ 0.6    4-5      None    
 18/03 AM   8.7/ 9.2  -1.1/-0.6  -0.2/ 0.2    2-3      None    
 18/03 PM   9.3/ 9.8  -0.5/ 0.0   0.2/ 0.7     2       None

&&

$$

 

 



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