Alert archive / Massachusetts / Coastal Flood Statements in 2021

Coastal Flood Statement 1, NWS Boston/Norton, MA

January 5, 2021Barnstable County, Norfolk County, Plymouth County, Massachusetts

NWS Boston/Norton, MA issued this coastal flood statement at Jan 5, 2021, 3:48 AM EST for Barnstable County, Norfolk County, Plymouth County, Massachusetts. It took effect at Jan 5, 2021, 2:00 PM EST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jan 5, 2021, 3:48 AM EST (08:48 UTC)
In effect from: Jan 5, 2021, 2:00 PM EST
Expired: Jan 5, 2021, 6:00 PM EST
In force: 4 hr
Issued by: NWS Boston/Norton, MA

Counties Barnstable County, MA, Norfolk County, MA, Plymouth County, MA

The radar

The Boston radar (KBOX), 34 km from the middle of the area, began a volume at 08:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Chatham, MA (KCHH), launched 00:00Z, 8.8 hours before the alert went out and 70 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 4 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 537 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

497 
WHUS41 KBOX 050848
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
348 AM EST Tue Jan 5 2021

MAZ024-051700-
/O.NEW.KBOX.CF.Y.0001.210105T1900Z-210105T2300Z/
Nantucket MA-
348 AM EST Tue Jan 5 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
6 PM EST THIS EVENING...

* WHAT...Up to one half foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways (5.1 to 5.3 feet Mean Lower Low Water).

* WHERE...Nantucket MA County.

* WHEN...From 2 PM this afternoon to 6 PM EST this evening.

* IMPACTS...Minor coastal flooding begins on Easy Street in 
  Nantucket.

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.

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 
 --------  ---------  ---------  ---------  -------  --------
 04/04 PM   5.0/ 5.5   1.4/ 1.9   1.7/ 2.2     5      Minor    
 05/04 AM   4.9/ 5.4   1.3/ 1.8   2.0/ 2.5     5      Minor    
 05/04 PM   5.0/ 5.5   1.4/ 1.9   2.0/ 2.5     5      Minor    
 06/05 AM   5.1/ 5.6   1.5/ 2.0   2.0/ 2.5     4      Minor    
 06/06 PM   4.7/ 5.2   1.1/ 1.6   1.7/ 2.2     4      Minor    
 07/06 AM   4.9/ 5.4   1.3/ 1.8   1.6/ 2.0     3      Minor

&&

$$

MAZ019-022-051700-
/O.NEW.KBOX.CF.S.0001.210105T1900Z-210105T2300Z/
Eastern Plymouth MA-Barnstable MA-
348 AM EST Tue Jan 5 2021

* WHAT...Less than one half foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways (3.9 to 12.7 feet Mean Lower Low Water).

* WHERE...Eastern Plymouth MA and Barnstable MA Counties.

* WHEN...From 2 PM EST this afternoon through this afternoon.

* 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.

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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  11.3/11.8   1.6/ 2.0   2.2/ 2.7     7      Minor    
 05/04 PM  11.4/11.9   1.7/ 2.2   2.0/ 2.5     8      Minor    
 06/04 AM  11.5/12.0   1.8/ 2.2   2.1/ 2.6     8      Minor    
 06/05 PM  10.7/11.2   1.0/ 1.5   1.6/ 2.0     7       None    
 07/05 AM  11.3/11.8   1.6/ 2.0   1.6/ 2.0    5-6     Minor

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 
 --------  ---------  ---------  ---------  -------  --------
 05/12 AM   5.5/ 6.0   1.1/ 1.6   1.6/ 2.0     1       None    
 05/12 PM   5.6/ 6.1   1.2/ 1.7   2.0/ 2.5     1       None    
 06/01 AM   5.7/ 6.2   1.4/ 1.9   1.8/ 2.2     1       None    
 06/02 PM   5.2/ 5.7   0.8/ 1.3   1.6/ 2.0     3       None    
 07/02 AM   5.6/ 6.1   1.2/ 1.7   1.4/ 1.9     2       None    
 07/02 PM   4.9/ 5.4   0.5/ 1.0   1.5/ 2.0     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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  11.9/12.4   1.8/ 2.2   2.2/ 2.7     4       None    
 05/04 PM  12.1/12.6   2.0/ 2.5   2.1/ 2.6     4       None    
 06/04 AM  12.2/12.7   2.1/ 2.6   2.2/ 2.7     4       None    
 06/05 PM  11.5/12.0   1.4/ 1.9   1.7/ 2.2    6-7      None    
 07/05 AM  11.8/12.3   1.7/ 2.2   1.6/ 2.0     5       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 
 --------  ---------  ---------  ---------  -------  --------
 05/12 AM   3.9/ 4.4   1.9/ 2.3   1.8/ 2.2     2       None    
 05/01 PM   4.0/ 4.5   2.1/ 2.6   2.0/ 2.5     2       None    
 06/01 AM   4.0/ 4.5   2.1/ 2.6   1.9/ 2.3     2       None    
 06/02 PM   3.9/ 4.4   1.9/ 2.3   1.9/ 2.3     2       None    
 07/02 AM   3.9/ 4.4   1.9/ 2.3   1.6/ 2.0    1-2      None    
 07/02 PM   3.5/ 4.0   1.5/ 2.0   1.6/ 2.0     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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  12.5/13.0   2.0/ 2.5   2.6/ 3.1    3-4      None    
 05/04 PM  12.5/13.0   2.0/ 2.5   2.3/ 2.8    3-4      None    
 06/05 AM  12.5/13.0   2.0/ 2.5   2.3/ 2.8     3       None    
 06/05 PM  11.9/12.4   1.4/ 1.9   2.0/ 2.5     5       None    
 07/05 AM  12.3/12.8   1.8/ 2.2   1.9/ 2.3     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 
 --------  ---------  ---------  ---------  -------  --------
 04/04 PM   6.4/ 6.9  -1.4/-0.9   1.3/ 1.8     7       None    
 05/04 AM   6.2/ 6.8  -1.5/-1.0   1.7/ 2.2     8       None    
 05/04 PM   6.4/ 6.9  -1.4/-0.9   1.6/ 2.0     8       None    
 06/05 AM   6.5/ 7.0  -1.3/-0.8   1.7/ 2.2    7-8      None    
 06/06 PM   5.9/ 6.4  -1.9/-1.4   1.2/ 1.7     7       None    
 07/06 AM   6.1/ 6.6  -1.7/-1.2   1.1/ 1.6     6       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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  10.7/11.2   0.4/ 0.9   2.2/ 2.7     4       None    
 05/04 PM  10.8/11.3   0.5/ 1.0   2.2/ 2.7     4       None    
 06/04 AM  10.8/11.3   0.5/ 1.0   2.2/ 2.7     4       None    
 06/05 PM  10.2/10.7  -0.2/ 0.3   1.8/ 2.2     5       None    
 07/05 AM  10.6/11.1   0.2/ 0.8   1.7/ 2.2     4       None

&&

$$

2 follow-up statements

104 
WHUS41 KBOX 051528
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
1028 AM EST Tue Jan 5 2021

MAZ024-052300-
/O.CON.KBOX.CF.Y.0001.210105T1900Z-210105T2300Z/
Nantucket MA-
1028 AM EST Tue Jan 5 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 6 PM EST THIS EVENING...

* WHAT...Up to one half foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways (5.1 to 5.3 feet Mean Lower Low Water).

* WHERE...Nantucket MA County.

* WHEN...From 2 PM this afternoon to 6 PM EST this evening.

* IMPACTS...Minor coastal flooding begins on Easy Street in 
  Nantucket.

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.

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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM   4.9/ 5.4   1.3/ 1.8   2.0/ 2.5     4      Minor    
 05/04 PM   5.0/ 5.5   1.4/ 1.9   2.0/ 2.5     4      Minor    
 06/05 AM   5.1/ 5.6   1.5/ 2.0   2.0/ 2.5     4      Minor    
 06/06 PM   4.7/ 5.2   1.1/ 1.6   1.7/ 2.2     4      Minor    
 07/06 AM   4.9/ 5.4   1.3/ 1.8   1.6/ 2.0    3-4     Minor    
 07/06 PM   4.2/ 4.7   0.7/ 1.1   1.6/ 2.0     2       None

&&

$$

MAZ019-022-052300-
/O.CON.KBOX.CF.S.0001.210105T1900Z-210105T2300Z/
Eastern Plymouth MA-Barnstable MA-
1028 AM EST Tue Jan 5 2021

* WHAT...Less than one half foot of inundation above ground 
  level expected in low-lying areas near shorelines and tidal 
  waterways (3.9 to 12.7 feet Mean Lower Low Water).

* WHERE...Eastern Plymouth MA and Barnstable MA Counties.

* WHEN...From 2 PM EST this afternoon through this afternoon.

* 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.

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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  11.3/11.8   1.6/ 2.0   2.2/ 2.7     8      Minor    
 05/04 PM  11.4/11.9   1.7/ 2.2   2.0/ 2.5     8      Minor    
 06/04 AM  11.5/12.0   1.8/ 2.2   2.1/ 2.6     9      Minor    
 06/05 PM  10.7/11.2   1.0/ 1.5   1.6/ 2.0     8       None    
 07/05 AM  11.3/11.8   1.6/ 2.0   1.6/ 2.0    5-6     Minor    
 07/06 PM  10.4/10.9   0.7/ 1.1   1.5/ 2.0    4-5      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 
 --------  ---------  ---------  ---------  -------  --------
 05/12 PM   5.6/ 6.1   1.2/ 1.7   2.0/ 2.5     1       None    
 06/01 AM   5.7/ 6.2   1.4/ 1.9   1.8/ 2.2     1       None    
 06/02 PM   5.2/ 5.7   0.8/ 1.3   1.6/ 2.0     2       None    
 07/02 AM   5.6/ 6.1   1.2/ 1.7   1.4/ 1.9     3       None    
 07/02 PM   4.9/ 5.4   0.5/ 1.0   1.5/ 2.0     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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  11.9/12.4   1.8/ 2.2   2.2/ 2.7     2       None    
 05/04 PM  12.1/12.6   2.0/ 2.5   2.1/ 2.6    2-3      None    
 06/04 AM  12.2/12.7   2.1/ 2.6   2.2/ 2.7     2       None    
 06/05 PM  11.5/12.0   1.4/ 1.9   1.7/ 2.2     3       None    
 07/05 AM  11.8/12.3   1.7/ 2.2   1.6/ 2.0    5-6      None    
 07/06 PM  11.1/11.6   1.0/ 1.5   1.6/ 2.0     4       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 
 --------  ---------  ---------  ---------  -------  --------
 05/01 PM   4.0/ 4.5   2.1/ 2.6   2.0/ 2.5    1-2      None    
 06/01 AM   4.0/ 4.5   2.1/ 2.6   1.9/ 2.3     1       None    
 06/02 PM   3.9/ 4.4   1.9/ 2.3   1.9/ 2.3     1       None    
 07/02 AM   3.9/ 4.4   1.9/ 2.3   1.6/ 2.0     2       None    
 07/02 PM   3.5/ 4.0   1.5/ 2.0   1.6/ 2.0     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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  12.5/13.0   2.0/ 2.5   2.6/ 3.1     3       None    
 05/04 PM  12.5/13.0   2.0/ 2.5   2.3/ 2.8     3       None    
 06/05 AM  12.5/13.0   2.0/ 2.5   2.3/ 2.8     3       None    
 06/05 PM  11.9/12.4   1.4/ 1.9   2.0/ 2.5     4       None    
 07/05 AM  12.3/12.8   1.8/ 2.2   1.9/ 2.3     4       None    
 07/06 PM  11.4/11.9   0.9/ 1.4   1.8/ 2.2     3       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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM   6.2/ 6.8  -1.5/-1.0   1.7/ 2.2     9       None    
 05/04 PM   6.4/ 6.9  -1.4/-0.9   1.6/ 2.0     8       None    
 06/05 AM   6.5/ 7.0  -1.3/-0.8   1.7/ 2.2     8       None    
 06/06 PM   5.9/ 6.4  -1.9/-1.4   1.2/ 1.7    7-8      None    
 07/06 AM   6.1/ 6.6  -1.7/-1.2   1.1/ 1.6     6       None    
 07/06 PM   5.5/ 6.0  -2.2/-1.8   1.1/ 1.6     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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 AM  10.7/11.2   0.4/ 0.9   2.2/ 2.7     5       None    
 05/04 PM  10.8/11.3   0.5/ 1.0   2.2/ 2.7    4-5      None    
 06/04 AM  10.8/11.3   0.5/ 1.0   2.2/ 2.7     5       None    
 06/05 PM  10.2/10.7  -0.2/ 0.3   1.8/ 2.2     4       None    
 07/05 AM  10.6/11.1   0.2/ 0.8   1.7/ 2.2    4-5      None    
 07/06 PM   9.8/10.3  -0.6/-0.1   1.6/ 2.0     3       None

&&

$$

940 
WHUS41 KBOX 052117
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
417 PM EST Tue Jan 5 2021

MAZ024-052300-
/O.CON.KBOX.CF.Y.0001.000000T0000Z-210105T2300Z/
Nantucket MA-
417 PM EST Tue Jan 5 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...

* WHAT...Up to one half foot of inundation above ground level in 
  low-lying areas near shorelines and tidal waterways (5.0 to 
  5.2 feet Mean Lower Low Water).

* WHERE...Nantucket County.

* WHEN...Until 6 PM EST this evening.

* IMPACTS...Minor coastal flooding begins on Easy Street in 
  Nantucket.

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.

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 
 --------  ---------  ---------  ---------  -------  --------
 05/05 PM   4.9/ 5.4   1.3/ 1.8   1.8/ 2.2    4-5     Minor    
 06/05 AM   4.9/ 5.4   1.3/ 1.8   1.8/ 2.2    4-5     Minor    
 06/05 PM   5.5/ 6.0   1.9/ 2.3   2.7/ 3.2    3-4     Minor    
 07/06 AM   5.7/ 6.2   2.1/ 2.6   2.3/ 2.8     3      Minor    
 07/06 PM   5.1/ 5.6   1.5/ 2.0   2.3/ 2.8     2      Minor    
 08/07 AM   5.6/ 6.1   2.0/ 2.5   2.1/ 2.6    1-2     Minor

&&

$$

MAZ019-022-052300-
/O.CON.KBOX.CF.S.0001.000000T0000Z-210105T2300Z/
Eastern Plymouth MA-Barnstable MA-
417 PM EST Tue Jan 5 2021

* WHAT...Up to one half foot of inundation above ground level in
  low-lying areas near shorelines and tidal waterways (2.6 to
  12.1 feet Mean Lower Low Water).

* WHERE...Eastern Plymouth and Barnstable Counties.

* WHEN...Until 6 PM EST this evening.

* 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.

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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 PM  11.2/11.7   1.5/ 2.0   1.8/ 2.2    8-9     Minor    
 06/04 AM  11.2/11.7   1.5/ 2.0   1.8/ 2.2    7-9     Minor    
 06/05 PM  11.3/11.8   1.6/ 2.0   2.2/ 2.7    6-8     Minor    
 07/05 AM  11.8/12.3   2.1/ 2.6   2.1/ 2.6    5-6     Minor    
 07/06 PM  11.0/11.5   1.3/ 1.8   2.1/ 2.6    4-5      None    
 08/06 AM  11.8/12.3   2.1/ 2.6   1.9/ 2.3    3-4     Minor

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 
 --------  ---------  ---------  ---------  -------  --------
 06/01 AM   5.7/ 6.2   1.4/ 1.9   1.8/ 2.2    1-2      None    
 06/02 PM   5.4/ 5.9   1.0/ 1.5   1.8/ 2.2     1       None    
 07/02 AM   6.4/ 6.9   2.0/ 2.5   2.2/ 2.7     1      Minor    
 07/02 PM   5.5/ 6.0   1.1/ 1.6   2.1/ 2.6     1       None    
 08/03 AM   6.2/ 6.7   1.8/ 2.2   1.9/ 2.3     1      Minor

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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 PM  11.8/12.3   1.7/ 2.2   1.8/ 2.2    3-4      None    
 06/04 AM  11.8/12.3   1.7/ 2.2   1.8/ 2.2    3-4      None    
 06/05 PM  12.0/12.5   1.9/ 2.3   2.2/ 2.7    3-4      None    
 07/05 AM  12.4/12.9   2.2/ 2.7   2.2/ 2.7    2-3      None    
 07/06 PM  11.6/12.1   1.5/ 2.0   2.1/ 2.6     4       None    
 08/06 AM  12.3/12.8   2.2/ 2.7   1.9/ 2.3     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 
 --------  ---------  ---------  ---------  -------  --------
 06/01 AM   4.0/ 4.5   2.0/ 2.5   1.8/ 2.2     2       None    
 06/03 PM   4.0/ 4.5   2.1/ 2.6   2.3/ 2.8    1-2      None    
 07/02 AM   4.7/ 5.2   2.7/ 3.2   2.3/ 2.8     1       None    
 07/02 PM   4.0/ 4.5   2.1/ 2.6   2.2/ 2.7     1       None    
 08/03 AM   4.5/ 5.0   2.5/ 3.0   2.1/ 2.6     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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 PM  11.9/12.4   1.4/ 1.9   1.8/ 2.2     3       None    
 06/05 AM  11.9/12.4   1.4/ 1.9   1.8/ 2.2    2-3      None    
 06/05 PM  12.5/13.0   2.0/ 2.5   2.6/ 3.1    2-3      None    
 07/05 AM  12.9/13.4   2.3/ 2.8   2.5/ 3.0     2      Minor    
 07/06 PM  12.1/12.6   1.6/ 2.0   2.5/ 3.0     3       None    
 08/06 AM  13.0/13.5   2.5/ 3.0   2.2/ 2.7     2      Minor

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 
 --------  ---------  ---------  ---------  -------  --------
 05/05 PM   6.7/ 7.2  -1.1/-0.6   1.8/ 2.2    7-8      None    
 06/05 AM   6.6/ 7.1  -1.1/-0.7   1.8/ 2.2    7-8      None    
 06/05 PM   6.6/ 7.1  -1.1/-0.7   2.0/ 2.5    6-8      None    
 07/06 AM   6.8/ 7.3  -1.0/-0.5   1.8/ 2.2    5-6      None    
 07/06 PM   6.2/ 6.7  -1.6/-1.1   1.8/ 2.2     5       None    
 08/07 AM   6.7/ 7.2  -1.1/-0.6   1.5/ 2.0     4       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 
 --------  ---------  ---------  ---------  -------  --------
 05/04 PM  10.4/10.9   0.1/ 0.6   1.8/ 2.2    4-5      None    
 06/04 AM  10.4/10.9   0.1/ 0.6   1.8/ 2.2     4       None    
 06/05 PM  10.6/11.1   0.2/ 0.8   2.2/ 2.7    3-4      None    
 07/05 AM  11.1/11.6   0.8/ 1.3   2.2/ 2.7     3       None    
 07/06 PM  10.3/10.8   0.0/ 0.5   2.1/ 2.6     3       None    
 08/06 AM  11.2/11.7   0.9/ 1.4   2.0/ 2.5    2-3      None

&&

$$

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 5, 3:48 AM EST	Coastal Flood Advisory	BOX	Nantucket	14 hr

Nearby

Coastal Flood Statements in Massachusetts, 2021 Every coastal flood statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.