Weather Alerts for Plymouth County

Issued by the National Weather Service

Coastal Flood Warning  COASTAL FLOOD WARNING   Coastal Flood Warning
PLYMOUTH COUNTY

Areas Affected:
Eastern Essex - Eastern Norfolk - Eastern Plymouth - Suffolk
Effective: Sun, 1/20 8:00am Updated: Fri, 1/18 6:43pm Urgency: Expected
Expires: Sun, 1/20 12:00pm Severity:  Moderate  Certainty: Likely

 
Details:
...COASTAL FLOOD WARNING IN EFFECT FROM 8 AM TO NOON EST SUNDAY...
The National Weather Service in Boston/Norton has issued a
Coastal Flood Warning, which is in effect from 8 AM to noon EST
Sunday. The Coastal Flood Watch is no longer in effect.
* LOCATIONS...Eastern Massachusetts coast.
* TIMING...From 8 AM to noon EST Sunday.
* COASTAL FLOOD IMPACTS...Flooding of near shore roads and
basements. Some roads may require closure around high tide.
Isolated structural damage is possible. Pockets of inundation of
1 to 3 feet above ground level.
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
--------  ---------  ---------  ---------  -------  --------
18/09 PM   7.4/ 7.9  -2.2/-1.7  -0.2/ 0.3    1-2      None
19/09 AM   9.1/ 9.6  -0.5/ 0.0  -0.2/ 0.3     2       None
19/10 PM   7.7/ 8.2  -1.9/-1.4  -0.2/ 0.3    2-4      None
20/10 AM  11.5/12.0   2.0/ 2.5   1.9/ 2.3   11-12   Moderate
20/11 PM   8.0/ 8.5  -1.6/-1.1  -0.2/ 0.3    3-4      None
21/11 AM   9.8/10.3   0.2/ 0.8  -0.2/ 0.3     3       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
--------  ---------  ---------  ---------  -------  --------
18/09 PM   8.3/ 8.8  -1.3/-0.8  -0.3/ 0.2     2       None
19/09 AM   9.7/10.2   0.2/ 0.7  -0.7/-0.2    2-3      None
19/10 PM   8.9/ 9.4  -0.7/-0.2  -0.2/ 0.3    3-5      None
20/10 AM  12.2/12.7   2.7/ 3.2   1.4/ 1.9   12-14   Minor-Mdt
20/11 PM   8.9/ 9.4  -0.7/-0.2  -0.6/-0.1     5       None
21/11 AM  10.6/11.1   1.1/ 1.6  -0.7/-0.2     4       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
--------  ---------  ---------  ---------  -------  --------
18/09 PM   9.1/ 9.6  -1.1/-0.6   0.0/ 0.5     1       None
19/09 AM  10.9/11.4   0.8/ 1.3   0.0/ 0.5     2       None
19/10 PM   9.6/10.1  -0.6/-0.1   0.0/ 0.5     2       None
20/10 AM  13.4/13.9   3.2/ 3.7   1.9/ 2.3     2      Minor
20/11 PM  10.0/10.5  -0.2/ 0.3   0.0/ 0.5     2       None
21/11 AM  11.8/12.3   1.7/ 2.2   0.0/ 0.5     2       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
--------  ---------  ---------  ---------  -------  --------
18/09 PM   9.0/ 9.5  -1.0/-0.5   0.1/ 0.6    1-2      None
19/09 AM  10.5/11.0   0.6/ 1.1  -0.2/ 0.2     2       None
19/10 PM   9.8/10.3  -0.2/ 0.3   0.4/ 0.9    2-5      None
20/10 AM  13.0/13.5   3.1/ 3.6   1.7/ 2.2   10-11    Minor
20/11 PM   9.9/10.4   0.0/ 0.5   0.0/ 0.5     3       None
21/11 AM  11.5/12.0   1.6/ 2.0  -0.2/ 0.2     3       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
--------  ---------  ---------  ---------  -------  --------
18/09 PM   8.6/ 9.1  -1.1/-0.7   0.1/ 0.6    1-2      None
19/09 AM  10.4/10.9   0.7/ 1.1   0.1/ 0.6    2-3      None
19/10 PM   9.2/ 9.7  -0.6/-0.1   0.2/ 0.8    2-5      None
20/10 AM  12.8/13.3   3.1/ 3.6   2.0/ 2.5   11-13   Minor-Mdt
20/11 PM   9.4/ 9.9  -0.3/ 0.2   0.1/ 0.6     4       None
21/11 AM  11.3/11.8   1.6/ 2.0   0.1/ 0.6     3       None
&&

Information:
A Coastal Flood Warning is issued when moderate coastal flooding
is expected. Moderate coastal flooding produces widespread
flooding of vulnerable shore roads and/or basements due to the
height of the storm tide and/or wave action. Numerous road
closures are needed. Lives may be at risk for people who put
themselves in harms way. Isolated structural damage may be
possible.

Coastal Flood Advisory  COASTAL FLOOD ADVISORY   Coastal Flood Advisory
PLYMOUTH COUNTY

Areas Affected:
Southern Bristol - Southern Plymouth
Effective: Sun, 1/20 5:00am Updated: Fri, 1/18 6:43pm Urgency: Expected
Expires: Sun, 1/20 10:00am Severity: Minor Certainty: Likely

 
Details:
...COASTAL FLOOD ADVISORY IN EFFECT FROM 5 AM TO 10 AM EST
SUNDAY...
The National Weather Service in Boston/Norton has issued a
Coastal Flood Advisory, which is in effect from 5 AM to 10 AM EST
Sunday.
* LOCATIONS...South Coastal Massachusetts and Rhode Island.
* TIMING...From 5 AM to 10 AM EST Sunday.
* COASTAL FLOOD IMPACTS...Flooding of the most vulnerable shore
roads is expected. The majority of roads remain passable with
only isolated closures around high tide. Inundation of up to one
foot above ground level.
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.
Narragansett Bay - Conimicut Point
MLLW Categories - Minor 7.0 FT, Moderate 8.5 FT, Major 10.0 FT
MHHW Categories - Minor 2.4 FT, Moderate 3.9 FT, Major 5.4 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/06 PM   4.5/ 5.0  -0.2/ 0.3   0.6/ 1.1     1       None
19/06 AM   4.9/ 5.4   0.2/ 0.8   0.1/ 0.6     1       None
19/06 PM   4.7/ 5.2   0.1/ 0.6   0.4/ 0.9     1       None
20/07 AM   7.1/ 7.6   2.5/ 3.0   2.0/ 2.5     2      Minor
20/07 PM   5.4/ 5.9   0.8/ 1.3   0.8/ 1.3     3       None
21/08 AM   5.4/ 5.9   0.8/ 1.3   0.1/ 0.6     3       None
Narragansett Bay - Quonset Point
MLLW Categories - Minor 5.0 FT, Moderate 6.0 FT, Major 7.5 FT
MHHW Categories - Minor 0.9 FT, Moderate 1.9 FT, Major 3.4 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/05 PM   4.2/ 4.7   0.2/ 0.7   0.7/ 1.1     1       None
19/06 AM   4.5/ 5.0   0.4/ 0.9   0.1/ 0.6     1       None
19/06 PM   4.2/ 4.7   0.2/ 0.7   0.4/ 0.9     1       None
20/07 AM   6.6/ 7.1   2.5/ 3.0   1.9/ 2.3     2     Minor-Mdt
20/07 PM   5.1/ 5.6   1.0/ 1.5   0.9/ 1.4     3       None
21/08 AM   5.0/ 5.5   0.9/ 1.4   0.1/ 0.6     3       None
Point Judith
MLLW Categories - Minor 8.0 FT, Moderate 9.5 FT, Major 11.0 FT
MHHW Categories - Minor 4.5 FT, Moderate 6.0 FT, Major 7.5 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/05 PM   3.4/ 3.9  -0.2/ 0.3   0.6/ 1.1     2       None
19/06 AM   3.7/ 4.2   0.2/ 0.8   0.2/ 0.7    2-3      None
19/06 PM   3.5/ 4.0   0.0/ 0.5   0.4/ 0.9    2-4      None
20/07 AM   5.7/ 6.2   2.2/ 2.7   2.0/ 2.5    6-7      None
20/07 PM   4.2/ 4.7   0.7/ 1.1   0.9/ 1.4    7-8      None
21/07 AM   4.2/ 4.7   0.7/ 1.1   0.2/ 0.7     5       None
Westerly
MLLW Categories - Minor 5.0 FT, Moderate 8.0 FT, Major 9.5 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
--------  ---------  ---------  ---------  -------  --------
18/06 PM   3.1/ 3.6   0.0/ 0.5   0.8/ 1.3     1       None
19/07 AM   3.4/ 3.9   0.2/ 0.8   0.4/ 0.9     2       None
19/07 PM   3.2/ 3.7   0.1/ 0.6   0.7/ 1.1    2-4      None
20/08 AM   5.4/ 5.9   2.2/ 2.7   2.2/ 2.7    4-5     Minor
20/08 PM   3.4/ 3.9   0.2/ 0.8   0.7/ 1.1    4-5      None
21/09 AM   3.7/ 4.2   0.6/ 1.1   0.4/ 0.9     3       None
Newport Harbor
MLLW Categories - Minor 6.6 FT, Moderate 9.0 FT, Major 10.5 FT
MHHW Categories - Minor 2.5 FT, Moderate 5.9 FT, Major 6.4 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/05 PM   4.0/ 4.5  -0.2/ 0.3   0.7/ 1.1     1       None
19/06 AM   4.5/ 5.0   0.4/ 0.9   0.2/ 0.7     1       None
19/06 PM   4.2/ 4.7   0.1/ 0.6   0.5/ 1.0     1       None
20/07 AM   6.6/ 7.1   2.5/ 3.0   2.0/ 2.5    2-3     Minor
20/07 PM   5.0/ 5.5   0.9/ 1.4   1.0/ 1.5     3       None
21/08 AM   5.0/ 5.5   0.9/ 1.4   0.2/ 0.7    2-3      None
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
--------  ---------  ---------  ---------  -------  --------
18/05 PM   3.7/ 4.2   0.2/ 0.7   0.7/ 1.1     2       None
19/06 AM   3.9/ 4.4   0.4/ 0.9   0.2/ 0.7     2       None
19/06 PM   3.7/ 4.2   0.2/ 0.7   0.4/ 0.9    2-3      None
20/07 AM   6.0/ 6.5   2.5/ 3.0   2.0/ 2.5    5-6     Minor
20/07 PM   4.4/ 4.9   0.9/ 1.4   0.9/ 1.4    6-7      None
21/07 AM   4.4/ 4.9   0.9/ 1.4   0.2/ 0.7    4-5      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
--------  ---------  ---------  ---------  -------  --------
18/06 PM   3.9/ 4.4   0.4/ 0.9   0.9/ 1.4     1       None
19/06 AM   4.0/ 4.5   0.6/ 1.1   0.4/ 0.9     2       None
19/07 PM   3.7/ 4.2   0.2/ 0.8   0.6/ 1.1    1-4      None
20/07 AM   5.9/ 6.4   2.3/ 2.8   2.0/ 2.5    4-5     Minor
20/07 PM   4.6/ 5.1   1.1/ 1.6   1.2/ 1.7    5-6      None
21/08 AM   4.4/ 4.9   0.9/ 1.4   0.4/ 0.9     4       None
Fall River
MLLW Categories - Minor 7.0 FT, Moderate 9.5 FT, Major 12.0 FT
MHHW Categories - Minor 2.3 FT, Moderate 4.8 FT, Major 7.3 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/06 PM   4.7/ 5.2   0.1/ 0.6   0.8/ 1.3     1       None
19/06 AM   5.2/ 5.7   0.5/ 1.0   0.2/ 0.7     1       None
19/07 PM   5.0/ 5.5   0.2/ 0.8   0.6/ 1.1     1       None
20/07 AM   7.3/ 7.8   2.6/ 3.1   2.0/ 2.5    2-3     Minor
20/07 PM   5.6/ 6.1   0.9/ 1.4   0.9/ 1.4     3       None
21/08 AM   5.7/ 6.2   1.1/ 1.6   0.2/ 0.7     3       None
New Bedford - Outside Hurricane Barrier
MLLW Categories - Minor 6.5 FT, Moderate 8.0 FT, Major 10.0 FT
MHHW Categories - Minor 2.6 FT, Moderate 4.1 FT, Major 6.1 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/06 PM   4.2/ 4.7   0.2/ 0.8   1.0/ 1.5     1       None
19/06 AM   4.7/ 5.2   0.8/ 1.3   0.5/ 1.0     1       None
19/07 PM   4.0/ 4.5   0.2/ 0.7   0.7/ 1.1    1-2      None
20/07 AM   6.7/ 7.2   2.7/ 3.2   2.2/ 2.7    2-3     Minor
20/07 PM   4.9/ 5.4   1.0/ 1.5   1.3/ 1.8    2-3      None
21/08 AM   4.9/ 5.4   1.0/ 1.5   0.5/ 1.0     3       None
Mattapoisett
MLLW Categories - Minor 8.5 FT, Moderate 10.0 FT, Major 12.0 FT
MHHW Categories - Minor 4.4 FT, Moderate 5.9 FT, Major 7.9 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/06 PM   4.2/ 4.7   0.1/ 0.6   0.9/ 1.4     1       None
19/06 AM   4.7/ 5.2   0.6/ 1.1   0.4/ 0.9     1       None
19/06 PM   4.2/ 4.7   0.1/ 0.6   0.5/ 1.0     1       None
20/07 AM   6.7/ 7.2   2.6/ 3.1   2.1/ 2.6    3-4      None
20/07 PM   5.4/ 5.9   1.3/ 1.8   1.2/ 1.7     3       None
21/08 AM   5.2/ 5.7   1.2/ 1.7   0.4/ 0.9     3       None
Wareham
MLLW Categories - Minor 8.0 FT, Moderate 9.5 FT, Major 11.5 FT
MHHW Categories - Minor 3.7 FT, Moderate 5.2 FT, Major 7.2 FT
Total      Total    Departure
Day/Time    Tide       Tide     from Norm   Waves    Flood
ft MLLW    ft MHHW       ft       ft      Impact
--------  ---------  ---------  ---------  -------  --------
18/06 PM   4.5/ 5.0   0.2/ 0.7   0.9/ 1.4     1       None
19/06 AM   5.0/ 5.5   0.7/ 1.1   0.2/ 0.8     1       None
19/07 PM   4.4/ 4.9   0.1/ 0.6   0.5/ 1.0     1       None
20/07 AM   7.0/ 7.5   2.7/ 3.2   2.1/ 2.6     3       None
20/07 PM   5.4/ 5.9   1.1/ 1.6   1.1/ 1.6     3       None
21/08 AM   5.4/ 5.9   1.1/ 1.6   0.2/ 0.8     3       None
&&

Information:
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.

Winter Storm Watch  WINTER STORM WATCH   Winter Storm Watch
PLYMOUTH COUNTY

Areas Affected:
Eastern Hampden - Eastern Norfolk - Eastern Plymouth - Northern Bristol - Southern Worcester - Suffolk - Western Hampden - Western Norfolk - Western Plymouth
Effective: Sat, 1/19 4:00pm Updated: Fri, 1/18 6:43pm Urgency: Future
Expires: Sun, 1/20 7:00pm Severity:  Moderate  Certainty: Possible

 
Details:
...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SUNDAY EVENING...
* WHAT...Heavy snow, sleet, and freezing rain. Total snow
accumulations of 4 to 9 inches possible with the higher amounts
more likely near the Massachusetts turnpike. A trace to two
tenths of an inch of ice accumulation is also possible, but a
narrow area across northern Connecticut, northwest Rhode Island
and interior southern MA may see a quarter to one half inch. If
these higher amounts were to occur a localized area of scattered
power outages would be possible.
* WHERE...Northern Connecticut, Rhode Island and Southeast
Massachusetts.
* WHEN...Mainly Saturday evening through Sunday afternoon.
* ADDITIONAL DETAILS...Heavy snow develops Saturday evening,
changes to a period of freezing rain and sleet in most locations
after midnight. A period of plain rain is expected across
southern Rhode Island and Southeast Massachusetts early Sunday
morning, but temperatures plunging through the 20s by mid
afternoon Sunday will result in a flash freeze and roads
becoming icy. Any mixed precipitation will end as a period of
snow Sunday afternoon. Travel will be very difficult and
hazardous Saturday night through Sunday afternoon, along with
poor visibility at times.

Information:
A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

Winter Storm Watch  WINTER STORM WATCH   Winter Storm Watch
PLYMOUTH COUNTY

Areas Affected:
Southern Bristol - Southern Plymouth
Effective: Sat, 1/19 4:00pm Updated: Fri, 1/18 6:43pm Urgency: Future
Expires: Sun, 1/20 7:00pm Severity:  Moderate  Certainty: Possible

 
Details:
...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SUNDAY EVENING...
* WHAT...Heavy snow, sleet, and freezing rain. Total snow and
sleet accumulations of 3 to 7 inches. Ice accumulations of a
trace to two tenths of an inch possible. Winds could gust as
high as 40 mph.
* WHERE...In Massachusetts, Southern Bristol MA and Southern
Plymouth MA Counties. In Rhode Island, Bristol RI, Washington
RI and Newport RI Counties.
* WHEN...Mainly Saturday evening through Sunday afternoon.
* ADDITIONAL DETAILS...Heavy snow develops Saturday evening,
changes to a period of freezing rain and sleet in most locations
near or shortly after midnight. Precipitation should change to
all rain by daybreak Sunday, but temperatures plunging through
the 20s by mid afternoon Sunday will result in a flash freeze
and roads becoming icy. Any mixed precipitation will end as a
period of snow Sunday afternoon. Travel will be very difficult
and hazardous Saturday night through Sunday afternoon, along
with poor visibility at times.

Information:
A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.