Coastal Flood Statement 8, NWS Boston/Norton, MA

896 
WHUS41 KBOX 140231
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
931 PM EST Fri Dec 13 2019


MAZ020-RIZ006-007-141045-
/O.CON.KBOX.CF.S.0008.191214T1200Z-191214T1700Z/
Southern Bristol MA-Washington RI-Newport RI-
931 PM EST Fri Dec 13 2019

...MINOR SPLASHOVER POSSIBLE DURING THE SATURDAY MORNING HIGH
TIDE...

* LOCATIONS...In Massachusetts, Southern Bristol County. In Rhode 
  Island, Newport and Washington Counties.

* TIMING...Saturday morning.

* COASTAL FLOOD IMPACTS...up to one half foot of inundation
  above ground level is possible in low-lying areas near
  shorelines and tidal waterways (4.5 to 6.5 feet Mean Lower
  Low Water).

&&

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.

Newport South Coast Beaches
MLLW Categories - Minor 6.0 FT, Moderate 7.5 FT, Major 9.0 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 
 --------  ---------  ---------  ---------  -------  --------
 13/09 PM   3.7/ 4.2   0.2/ 0.8   0.6/ 1.1    5-6      None    
 14/09 AM   4.7/ 5.2   1.2/ 1.7   1.0/ 1.5    9-11     None    
 14/09 PM   3.2/ 3.7  -0.2/ 0.2   0.1/ 0.6    9-11     None    
 15/10 AM   3.2/ 3.7  -0.3/ 0.2  -0.5/ 0.0     8       None    
 15/10 PM   2.7/ 3.2  -0.8/-0.2  -0.5/ 0.0    6-7      None    
 16/11 AM   3.1/ 3.6  -0.5/ 0.0  -0.5/ 0.0    3-4      None

Newport Harbor
MLLW Categories - Minor 6.0 FT, Moderate 9.0 FT, Major 10.5 FT
MHHW Categories - Minor 1.9 FT, Moderate 4.9 FT, Major 6.4 FT

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 13/09 PM   4.4/ 4.9   0.2/ 0.8   0.8/ 1.3    1-3      None    
 14/09 AM   5.4/ 5.9   1.3/ 1.8   1.1/ 1.6    2-3      None    
 14/10 PM   3.9/ 4.4  -0.2/ 0.2   0.2/ 0.8     3       None    
 15/10 AM   3.7/ 4.2  -0.3/ 0.2  -0.5/ 0.0     3       None    
 15/10 PM   3.2/ 3.7  -1.0/-0.5  -0.5/ 0.0     3       None    
 16/11 AM   3.7/ 4.2  -0.5/ 0.0  -0.5/ 0.0    2-3      None

Westport
MLLW Categories - Minor 6.0 FT, Moderate 8.0 FT, Major 10.0 FT
MHHW Categories - Minor 2.5 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 
 --------  ---------  ---------  ---------  -------  --------
 13/09 PM   3.9/ 4.4   0.4/ 0.9   0.8/ 1.3    3-4      None    
 14/09 AM   4.7/ 5.2   1.2/ 1.7   1.2/ 1.7    6-8      None    
 14/10 PM   3.2/ 3.7  -0.2/ 0.2   0.2/ 0.8    8-10     None    
 15/10 AM   3.2/ 3.7  -0.3/ 0.2  -0.2/ 0.2    7-8      None    
 15/11 PM   2.7/ 3.2  -0.9/-0.4  -0.2/ 0.2    6-7      None    
 16/11 AM   3.0/ 3.5  -0.6/-0.1  -0.2/ 0.2    4-5      None

&&

$$

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www.weather.gov/boston

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You can follow us on Twitter at
@NWSBoston

787 
WHUS41 KBOX 140726
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
226 AM EST Sat Dec 14 2019

MAZ007-015-016-019-022-024-141530-
/O.EXB.KBOX.CF.S.0008.191214T1400Z-191214T1900Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Nantucket MA-
226 AM EST Sat Dec 14 2019

...VERY MINOR COASTAL FLOODING AND SPLASHOVER POSSIBLE DURING 
THE MIDDAY HIGH TIDE CYCLE...

* LOCATIONS...Eastern Plymouth MA, Suffolk MA, Eastern Essex MA, 
  Barnstable MA, Eastern Norfolk MA and Nantucket MA.

* TIMING...The midday high tide cycle.

* COASTAL FLOOD IMPACTS...Up to one half foot of inundation 
  above ground level is possible in low-lying areas near 
  shorelines and tidal waterways (4.0 to 12.3 feet Mean Lower 
  Low Water). 

&&

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.

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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   9.8/10.3   0.2/ 0.8   1.2/ 1.7    5-7      None    
 14/12 PM  11.5/12.0   2.0/ 2.5   1.1/ 1.6     10     Minor    
 15/01 AM   9.0/ 9.5  -0.6/-0.1   0.0/ 0.5    9-10     None    
 15/01 PM  10.1/10.6   0.6/ 1.1  -0.2/ 0.2    6-7      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 6.4 FT

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   9.1/ 9.6  -1.1/-0.6   0.0/ 0.5     2       None    
 14/12 PM  11.0/11.5   0.9/ 1.4   0.1/ 0.6     2       None    
 15/01 AM   9.2/ 9.7  -1.0/-0.5  -0.2/ 0.2     2       None    
 15/01 PM  10.6/11.1   0.5/ 1.0  -0.2/ 0.2     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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   9.8/10.3  -0.2/ 0.3   0.8/ 1.3    4-5      None    
 14/12 PM  12.0/12.5   2.1/ 2.6   1.1/ 1.6    6-7      None    
 15/01 AM   9.3/ 9.8  -0.7/-0.2  -0.2/ 0.3    6-7      None    
 15/01 PM  10.7/11.2   0.8/ 1.3  -0.2/ 0.2    4-5      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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   8.7/ 9.2  -1.7/-1.2   0.8/ 1.3     3       None    
 14/12 PM  10.7/11.2   0.4/ 0.9   1.1/ 1.6     3       None    
 15/01 AM   8.3/ 8.8  -2.0/-1.6   0.0/ 0.5     3       None    
 15/01 PM   9.5/10.0  -0.9/-0.4  -0.2/ 0.3     3       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 
 --------  ---------  ---------  ---------  -------  --------
 14/09 AM   5.7/ 6.2   1.4/ 1.9   1.1/ 1.6     3       None    
 14/10 PM   4.6/ 5.1   0.2/ 0.8   0.8/ 1.3     3       None    
 15/10 AM   4.2/ 4.7   0.0/ 0.5  -0.2/ 0.2     3       None    
 15/11 PM   3.6/ 4.1  -0.8/-0.2  -0.2/ 0.2    3-4      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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   9.9/10.4   9.9/10.4   0.6/ 1.1     3       None    
 14/12 PM  12.1/12.6  12.1/12.6   1.0/ 1.5     3       None    
 15/01 AM   9.9/10.4   9.9/10.4   0.1/ 0.6     3       None    
 15/01 PM  11.1/11.6  11.1/11.6  -0.2/ 0.3     4       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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   9.3/ 9.8  -0.9/-0.4   0.5/ 1.0     3       None    
 14/01 PM  11.4/11.9   1.3/ 1.8   1.0/ 1.5    4-6      None    
 15/01 AM   9.2/ 9.7  -1.0/-0.5   0.0/ 0.5     6       None    
 15/01 PM  10.3/10.8   0.2/ 0.7  -0.2/ 0.2     6       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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 AM   3.1/ 3.6  -0.6/-0.1   0.4/ 0.9     3       None    
 14/01 PM   4.6/ 5.1   1.0/ 1.5   1.0/ 1.5     3      Minor    
 15/02 AM   2.5/ 3.0  -1.1/-0.7  -0.2/ 0.2    4-5      None    
 15/02 PM   3.4/ 3.9  -0.2/ 0.2  -0.2/ 0.2     5       None

&&

$$

MAZ020-RIZ006-007-141530-
/O.CON.KBOX.CF.S.0008.191214T1200Z-191214T1700Z/
Southern Bristol MA-Washington RI-Newport RI-
226 AM EST Sat Dec 14 2019

...VERY MINOR COASTAL FLOODING AND SPLASHOVER POSSIBLE DURING 
THE MORNING HIGH TIDE CYCLE...

* LOCATIONS...In Massachusetts, Southern Bristol MA. In Rhode 
  Island, Washington RI and Newport RI.

* TIMING...From 7 AM this morning to noon EST today.

* COASTAL FLOOD IMPACTS...up to one half foot of   
  inundation above ground level is possible in low-lying areas 
  near shorelines and tidal waterways (4.7 to 6.6 feet Mean 
  Lower Low Water).

&&

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.

Newport South Coast Beaches
MLLW Categories - Minor 6.0 FT, Moderate 7.5 FT, Major 9.0 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 
 --------  ---------  ---------  ---------  -------  --------
 14/09 AM   4.9/ 5.4   1.4/ 1.9   1.2/ 1.7    8-9      None    
 14/09 PM   3.5/ 4.0   0.0/ 0.5   0.2/ 0.8    9-11     None    
 15/10 AM   3.4/ 3.9  -0.2/ 0.3  -0.2/ 0.2     8       None    
 15/10 PM   3.0/ 3.5  -0.6/-0.1  -0.2/ 0.2     7       None

Newport Harbor
MLLW Categories - Minor 6.0 FT, Moderate 9.0 FT, Major 10.5 FT
MHHW Categories - Minor 1.9 FT, Moderate 4.9 FT, Major 6.4 FT

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 14/09 AM   5.6/ 6.1   1.5/ 2.0   1.3/ 1.8     3      Minor    
 14/10 PM   4.0/ 4.5   0.0/ 0.5   0.5/ 1.0     3       None    
 15/10 AM   4.0/ 4.5  -0.2/ 0.3  -0.2/ 0.2     3       None    
 15/10 PM   3.4/ 3.9  -0.8/-0.2  -0.2/ 0.2     3       None

Westport
MLLW Categories - Minor 6.0 FT, Moderate 8.0 FT, Major 10.0 FT
MHHW Categories - Minor 2.5 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 
 --------  ---------  ---------  ---------  -------  --------
 14/09 AM   4.7/ 5.2   1.3/ 1.8   1.3/ 1.8     6       None    
 14/10 PM   3.4/ 3.9  -0.2/ 0.3   0.4/ 0.9    8-10     None    
 15/10 AM   3.2/ 3.7  -0.2/ 0.2  -0.2/ 0.3    7-8      None    
 15/11 PM   2.7/ 3.2  -0.8/-0.2  -0.2/ 0.3     7       None

&&

$$

Frank

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
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You can follow us on Twitter at
@NWSBoston

917 
WHUS41 KBOX 141605
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
1105 AM EST Sat Dec 14 2019

MAZ020-RIZ006-007-141715-
/O.CAN.KBOX.CF.S.0008.000000T0000Z-191214T1700Z/
Southern Bristol MA-Washington RI-Newport RI-
1105 AM EST Sat Dec 14 2019

...The threat of any splash over has ended for the south coast....

$$

MAZ007-015-016-019-022-024-141900-
/O.CON.KBOX.CF.S.0008.000000T0000Z-191214T1900Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Barnstable MA-Nantucket MA-
1105 AM EST Sat Dec 14 2019

...VERY MINOR COASTAL FLOODING AND SPLASHOVER POSSIBLE DURING 
HIGH TIDE...

* LOCATIONS...Eastern Plymouth MA, Suffolk MA, Eastern Essex MA, 
  Barnstable MA, Eastern Norfolk MA and Nantucket MA.

* TIMING...Until 2 PM EST this afternoon.

* COASTAL FLOOD IMPACTS...Up to one half foot of inundation 
  above ground level is possible in low-lying areas near 
  shorelines and tidal waterways (4.0 to 12.3 feet Mean Lower 
  Low Water). 

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.

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 
 --------  ---------  ---------  ---------  -------  --------
 14/12 PM  11.5/12.0   2.0/ 2.5   1.1/ 1.6     10     Minor    
 15/01 AM   9.0/ 9.5  -0.6/-0.1   0.0/ 0.5    9-10     None    
 15/01 PM  10.1/10.6   0.6/ 1.1  -0.2/ 0.2    6-7      None    
 16/02 AM   8.8/ 9.3  -0.8/-0.2  -0.2/ 0.2     5       None    
 16/02 PM  10.0/10.5   0.5/ 1.0  -0.2/ 0.2    3-4      None    
 17/03 AM   8.9/ 9.4  -0.7/-0.2  -0.2/ 0.3     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 6.4 FT

             Total      Total    Departure                   
 Day/Time    Tide       Tide     from Norm   Waves    Flood  
            ft MLLW    ft MHHW       ft       ft      Impact 
 --------  ---------  ---------  ---------  -------  --------
 14/12 PM  11.0/11.5   0.9/ 1.4   0.1/ 0.6     2       None    
 15/01 AM   9.2/ 9.7  -1.0/-0.5  -0.2/ 0.2     2       None    
 15/01 PM  10.6/11.1   0.5/ 1.0  -0.2/ 0.2     2       None    
 16/02 AM   9.3/ 9.8  -0.9/-0.4  -0.2/ 0.2     2       None    
 16/02 PM  10.5/11.0   0.4/ 0.9  -0.2/ 0.2     1       None    
 17/03 AM   9.3/ 9.8  -0.9/-0.4  -0.2/ 0.2     1       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 
 --------  ---------  ---------  ---------  -------  --------
 14/12 PM  12.0/12.5   2.1/ 2.6   1.1/ 1.6    6-7      None    
 15/01 AM   9.3/ 9.8  -0.7/-0.2  -0.2/ 0.3    6-7      None    
 15/01 PM  10.7/11.2   0.8/ 1.3  -0.2/ 0.2    4-5      None    
 16/02 AM   9.3/ 9.8  -0.7/-0.2  -0.2/ 0.2     4       None    
 16/02 PM  10.6/11.1   0.7/ 1.1  -0.2/ 0.2    2-3      None    
 17/03 AM   9.5/10.0  -0.5/ 0.0   0.0/ 0.5     2       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 
 --------  ---------  ---------  ---------  -------  --------
 14/12 PM  10.7/11.2   0.4/ 0.9   1.1/ 1.6     3       None    
 15/01 AM   8.3/ 8.8  -2.0/-1.6   0.0/ 0.5     3       None    
 15/01 PM   9.5/10.0  -0.9/-0.4  -0.2/ 0.3    3-4      None    
 16/02 AM   8.3/ 8.8  -2.0/-1.6  -0.2/ 0.3     4       None    
 16/02 PM   9.4/ 9.9  -1.0/-0.5  -0.2/ 0.3    2-3      None    
 17/03 AM   8.5/ 9.0  -1.9/-1.4   0.1/ 0.6     2       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 
 --------  ---------  ---------  ---------  -------  --------
 14/09 AM   5.7/ 6.2   1.4/ 1.9   1.1/ 1.6     3       None    
 14/10 PM   4.6/ 5.1   0.2/ 0.8   0.8/ 1.3     3       None    
 15/10 AM   4.2/ 4.7   0.0/ 0.5  -0.2/ 0.2     3       None    
 15/11 PM   3.6/ 4.1  -0.8/-0.2  -0.2/ 0.2    3-4      None    
 16/11 AM   4.0/ 4.5  -0.2/ 0.2  -0.2/ 0.2     2       None    
 16/11 PM   3.7/ 4.2  -0.7/-0.2  -0.2/ 0.2     2       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 
 --------  ---------  ---------  ---------  -------  --------
 14/12 PM  12.1/12.6  12.1/12.6   1.0/ 1.5     3       None    
 15/01 AM   9.9/10.4   9.9/10.4   0.1/ 0.6     3       None    
 15/01 PM  11.1/11.6  11.1/11.6  -0.2/ 0.3     4       None    
 16/02 AM   9.8/10.3   9.8/10.3  -0.2/ 0.3     4       None    
 16/02 PM  11.0/11.5  11.0/11.5  -0.2/ 0.3    2-3      None    
 17/03 AM  10.0/10.5  10.0/10.5   0.0/ 0.5     2       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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM  11.4/11.9   1.3/ 1.8   1.0/ 1.5    4-6      None    
 15/01 AM   9.2/ 9.7  -1.0/-0.5   0.0/ 0.5     6       None    
 15/01 PM  10.3/10.8   0.2/ 0.7  -0.2/ 0.2     6       None    
 16/02 AM   9.0/ 9.5  -1.1/-0.7  -0.2/ 0.2     5       None    
 16/02 PM  10.2/10.7   0.1/ 0.6  -0.2/ 0.2     3       None    
 17/03 AM   9.2/ 9.7  -1.0/-0.5  -0.2/ 0.3    2-3      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 
 --------  ---------  ---------  ---------  -------  --------
 14/01 PM   4.6/ 5.1   1.0/ 1.5   1.0/ 1.5     3      Minor    
 15/02 AM   2.5/ 3.0  -1.1/-0.7  -0.2/ 0.2    4-5      None    
 15/02 PM   3.4/ 3.9  -0.2/ 0.2  -0.2/ 0.2     6       None    
 16/03 AM   2.6/ 3.1  -1.1/-0.6  -0.2/ 0.2    5-6      None    
 16/03 PM   3.4/ 3.9  -0.2/ 0.2  -0.2/ 0.2     3       None    
 17/04 AM   2.7/ 3.2  -0.9/-0.4  -0.2/ 0.3    2-3      None

&&

$$

For the latest updates...please visit our webpage at
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Area Forecast Discussion
National Weather Service Boston/Norton MA
413 PM EST Fri Dec 13 2019

.SYNOPSIS...
Heavy rain overspreads southern New England later tonight into
Saturday. There may be pockets of light freezing rain in
interior high elevations late this afternoon into the evening,
but will change to rain as warm air surges into the region
overnight. A period of strong winds is also expected on Saturday
afternoon across the Cape and Islands. Blustery conditions
continue on Sunday. Seasonable temperatures on Monday before another
system impacts the area on Monday night into Tuesday. It looks
to begin as snow then mix with or change to rain near the coast.
Mostly dry conditions return on Wednesday except for some snow
showers in interior high elevations and the Cape. A reinforcing
shot of cold air arrives late Wednesday, which will yield well
below normal temperatures on Thursday and Friday.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
* Slippery travel expected for the evening commute

* Heavy Rain will result in the potential for some river/stream
  flooding and some urban street flooding are possible, too

Temperatures lingered around freezing in the valleys of
interior southern New England this afternoon. Thus the threat of
freezing rain continues into this afternoon. Will continue the
Winter Weather Advisory until all temperatures are above
freezing.

Steadier rainfall will overspread southern New England tonight,
with the heaviest rainfall across the eastern half of southern
New England after midnight. Many signals for efficient rainfall
process late tonight into Saturday. Most impressive is the depth
of the warm rain processes, in excess of 10 kft for most
locations. Moisture flux convergence at 850 mb is +6 standard
deviations for mid December. Wind convergence and speeds are
also +3 to +4 standard deviations. It will rain tonight. It is
now just a question of how fast it will fall and where.

Majority of the synoptic dynamics favor a period of heavy
rainfall across the eastern half of southern New England. Decent
frontogenesis at the nose of a strong low level jet. Have some
concerns for elevated convection, but not overly confident there
will be enough instability to make it a reality. Would not be
surprised for a few rumbles of thunder later tonight. Flood
Watch will continue as posted.

Strong southerly winds will mean slowly rising temperatures
through tonight.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/...
* Period of southerly 40 to 55 mph wind gusts likely across the
  Cape/Islands on Saturday

Heavy rainfall should continue through much of Saturday morning.
The big question will be how soon does this rainfall move
offshore. Thinking a dry slot develops on the backside of a
departing low pressure. This should bring rainfall to an end
across the eastern half of southern New England during the
afternoon hours. Some question above central and western MA,
which will be closer to the core of a cold pool aloft. Thinking
some showers will persist into the afternoon there, but will
not be nearly as heavy.

Impressive low level jet at 925 mb, but stuck above a shallow
but strong inversion. Not expecting mechanical mixing to be a
huge factor in bringing these speeds to the surface. That pretty
much just leaves precipitation drag, particularly if convection
develops. Wind Advisory will continue for the Cape and islands.

A 1 to 2 foot storm surge appears reasonable along the south
coast during the Saturday morning high tide. This may result in
some pockets of splashover/minor coastal flooding. However, do
not expect winds or storm surge to result in anything too
significant.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...

Highlights...

* Sunday will be blustery with some snow showers in the interior
  higher elevations and rain showers elsewhere. Also have to watch
  pockets of minor flooding as area rivers crest from the rainfall
  and snowmelt runoff.

* Seasonably cold on Monday before the next system arrives late
  Monday, likely starting as snow before mixing with or changing to
  rain. Confidence is growing with an impactful storm but
  precipitation types remain uncertain due to spread in model
  guidance.

* Unseasonably cold but dry from Wednesday through Friday.

Details...

Sunday...

** Strong winds and pockets of minor river flooding on Sunday **

Low pressure will shift northeast into Maine and the Maritimes by
Sunday morning, though there may be scattered showers on Sunday
morning. There could be some snow showers in the East Slopes of the
Berkshires and the Northern Worcester Hills Sunday morning into
early afternoon but any accumulations would be very light. The main
concern on Sunday, however, is the wind. In wake of the departing
low, west winds increase, possibly gusting up to 25 kts in the
interior higher elevations and up to 40 kts over the waters. This is
supported by Bufkit soundings show a momentum transfer of 35 kts at
the bottom of the boundary layer and 48 kts at the top of the
boundary layer in Boston early Sunday afternoon. As a result, there
are Gale Warnings for all waters on Sunday.

An issue of concern for Sunday is the potential for localized
flooding as local rivers crest. NOHRSC is forecasting up to 2 inches
of snowmelt in the East Slopes of the Berkshires and along the CT
River valley in MA by early Sunday morning. So the combination of
snowmelt runoff and heavy rain that fell on Saturday may result
in pockets of minor river flooding as river levels crest.

Next Monday through Tuesday...

** Potential for snow mixing with/changing to rain on Tuesday but
low confidence given the spread of model guidance**

Another cold front will sweep across the region by Monday morning,
bringing gusty northwest winds and colder air across the region.
Expect highs on Monday to be in the 30s and 40s. Another low
pressure system looks to impact the area by early Tuesday. GEFS
Ensemble shows PWATs 1 to 2 standard deviations above normal and
even 2 to 3 standard deviations above normal for parts of Eastern MA
coast. With the cold air in place, it should start off as snow
before changing to mixed precipitation or rain away from the
interior. However, if the low pressure tracks near the 70W/40N
benchmark, it is not out of the question this could remain mostly
snow and bring impactful snowfall to the I-95 corridor. But since we
are still 4 days away and given the spread of model guidance,
confidence is low and all solutions remain on the table. The
precipitation comes to an end late Tuesday night.

Next Wednesday through Friday...

** Below average temperatures Thursday and Friday **

Other than some scattered snow showers in the East Slopes of the
Berkshires and some ocean-effect snow showers on the Cape, Wednesday
looks dry but with below average high temperatures in the 20s in the
interior and 30s near the coast. Northwest winds could gust up to 20
kts in the interior and 30 kts near the coast on Wednesday
afternoon. A deep 500 mb trough then builds into the region late
Wednesday night into early Thursday so Thursday and Friday look to
be even colder with sub-freezing highs possible for all locations.
There may be some snow showers associated with a reinforcing shot of
cold air late Wednesday into early Thursday but confidence is really
low this far out. High temperatures will be 5 to 10 degrees below
average for mid December. This is consistent with the CPC's 6-10
days outlook, with a 60 to 70 percent probability of below normal
temperatures, but also a 40 to 50 percent probability of below
normal precipitation. Overnight lows could drop into the single
digits in the interior high elevations and teens elsewhere. With
persistent northwest winds, it will feel 5 to 10 degrees colder. A
clipper system may skirt northwest MA late Thursday but confidence
is extremely low a week out.

&&

.AVIATION /21Z FRIDAY THROUGH WEDNESDAY/...
Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Short Term /through Saturday Night/...High confidence in trends. Moderate
confidence in timing.

Through 00Z...Mix of VFR across eastern MA, decreasing to MVFR
conditions across western MA and northern CT. Ceilings lowering
through the evening push.

Tonight and Saturday...Conditions deteriorate through the night
to IFR/LIFR thresholds and persist into at least the first half
of Saturday. Heavy rainfall late tonight into Saturday morning,
and can not rule out an isolated thunderstorm or two. A period
of southerly wind gusts of 35 to 45 knots develops Saturday
across the Cape/Islands. Some gusty southerly winds are possible
along the coastal plain, too. Elsewhere a fairly strong inversion
will keep strong winds aloft. However, LLWS will be a concern.

KBOS Terminal...High confidence in trends. Moderate
confidence in timing.

KBDL Terminal... High confidence in trends. Moderate
confidence in timing.

Outlook /Sunday through Wednesday/...

Sunday: Mainly VFR, with local MVFR possible. Strong winds with
local gusts up to 40 kt.

Sunday Night: VFR. Strong winds with local gusts up to 40 kt.

Monday: VFR. Breezy. Chance SN.

Monday Night: MVFR/IFR conditions possible. SN likely, RA
likely, PL likely, FZRA likely, patchy BR.

Tuesday: MVFR/IFR conditions possible. Breezy. Chance RA,
chance SN, FZRA likely, patchy FG.

Tuesday Night: Mainly VFR, with local IFR possible. Breezy.
Patchy BR.

Wednesday: VFR. Windy with local gusts up to 30 kt.

&&

.MARINE...
Short Term /through Saturday Night/...High confidence.

Increasing LLJ will result in SW winds of 25 to 30 knots
developing tonight. On Saturday, a potent 80 knot LLJ at 925 MB
will result in a period of southerly wind gusts between 35 and
45 knots on most open waters, so Gale Warnings are posted.
Despite the inversion, given the magnitude of the LLJ, expect
some Gale Force gusts to mix down especially if any embedded
convection develops. Seas build to between 7 and 13 feet across
our open waters.

Outlook /Sunday through Wednesday/...

Sunday: Moderate risk for gale force winds with gusts up to
40 kt. Rough seas up to 15 ft.

Sunday Night: Low risk for gale force winds with gusts up to
40 kt. Rough seas up to 13 ft.

Monday: Winds less than 25 kt. Areas of rough seas. Chance of
rain, slight chance of snow.

Monday Night: Winds less than 25 kt. Areas of seas approaching
5 ft. Rain likely, snow likely, patchy fog. Areas of visibility
1 to 3 nm.

Tuesday: Winds less than 25 kt. Areas of rough seas. Chance of
rain, patchy fog.

Tuesday Night: Winds less than 25 kt. Areas of rough seas.
Slight chance of rain. Local visibility 1 to 3 nm.

Wednesday: Low risk for Small Craft Advisory winds with gusts
up to 30 kt. Rough seas up to 9 ft. Slight chance of snow.
Local visibility 1 to 3 nm.

&&

.HYDROLOGY...
Thinking there is an elevated risk for flooding issues late
tonight into Saturday due to a combination of excessive rainfall
and snowmelt. Will need to consider River Flood Watches for some
locations, particularly across RI southeast MA where the
heaviest rainfall is expected. Poor drainage and urban flooding
will also be a concern. This includes locations trying to drain
in the ocean, which will be a bit higher due to the proximity to
the last full moon as well as from surge.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Winter Weather Advisory until 10 PM EST this evening for
     CTZ002.
MA...Flood Watch from 1 AM EST Saturday through late Saturday night
     for MAZ004>007-012>024-026.
     Winter Weather Advisory until 10 PM EST this evening for
     MAZ002>004-008>011-026.
     Wind Advisory from 8 AM to 4 PM EST Saturday for MAZ022>024.
RI...Flood Watch from 1 AM EST Saturday through late Saturday night
     for RIZ001>008.
MARINE...Gale Warning from 7 AM Saturday to 7 PM EST Sunday for
     ANZ231>235-250-251-254>256.
     Small Craft Advisory from 7 AM Saturday to 7 AM EST Sunday for
     ANZ230-236.
     Gale Warning from 7 PM Saturday to 7 PM EST Sunday for ANZ237.

&&

SYNOPSIS...Belk/Chai
NEAR TERM...Belk/BL
SHORT TERM...Belk/BL
LONG TERM...Chai
AVIATION...Belk/BL/Chai
MARINE...Belk/BL/Chai
HYDROLOGY...

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
410 AM EST Fri Dec 13 2019

MAZ004>007-012>021-026-RIZ001>008-140915-
Northern Worcester MA-Central Middlesex MA-Western Essex MA-
Eastern Essex MA-Southern Worcester MA-Western Norfolk MA-
Southeast Middlesex MA-Suffolk MA-Eastern Norfolk MA-
Northern Bristol MA-Western Plymouth MA-Eastern Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI-
410 AM EST Fri Dec 13 2019

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY
NIGHT...

This Hazardous Weather Outlook is for central and eastern
Massachusetts, and Rhode Island.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

CTZ002>004-MAZ002-003-008>011-140915-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-
410 AM EST Fri Dec 13 2019

This Hazardous Weather Outlook is for northern Connecticut and
western Massachusetts.

.DAY ONE...Today and tonight.

With the heavy rainfall moving in across the area, a flood watch may
be needed late tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

A flood watch may needed Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

MAZ022>024-140915-
Barnstable MA-Dukes MA-Nantucket MA-
410 AM EST Fri Dec 13 2019

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE SATURDAY
NIGHT...
...WIND ADVISORY IN EFFECT FROM 8 AM TO 4 PM EST SATURDAY...

This Hazardous Weather Outlook is for southeastern Massachusetts.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.
   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

ANZ231>235-250-251-254>256-140915-
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-
Coastal waters east of Ipswich Bay and the Stellwagen Bank National
Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard and
Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out to
20 nm South of Block Island-
410 AM EST Fri Dec 13 2019

...GALE WARNING IN EFFECT FROM 7 AM SATURDAY TO 7 PM EST SUNDAY...

This Hazardous Weather Outlook is for Massachusetts coastal waters
and Rhode Island coastal waters.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

ANZ237-140915-
Block Island Sound-
410 AM EST Fri Dec 13 2019

...GALE WARNING IN EFFECT FROM 7 PM SATURDAY TO 7 PM EST SUNDAY...

This Hazardous Weather Outlook is for Rhode Island coastal waters.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

ANZ230-236-140915-
Boston Harbor-Narragansett Bay-
410 AM EST Fri Dec 13 2019

This Hazardous Weather Outlook is for Massachusetts coastal waters
and Rhode Island coastal waters.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There is the chance for gale force winds for Saturday night and
Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

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