Gale Warning 5, NWS Boston/Norton, MA

146 
WHUS71 KBOX 190304
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1004 PM EST Fri Jan 18 2019

ANZ250-254>256-191115-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
1004 PM EST Fri Jan 18 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM SATURDAY TO 7 AM EST
MONDAY...

* WINDS AND SEAS...North winds 20 to 30 kt with gusts up to 45 
  kt. Seas 11 to 16 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231>235-237-251-191115-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
1004 PM EST Fri Jan 18 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM SATURDAY TO 7 AM EST
MONDAY...

* WINDS AND SEAS...North winds 20 to 30 kt with gusts up to 45 
  kt. Seas 6 to 11 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ230-191115-
/O.CON.KBOX.GL.A.0003.190120T0300Z-190121T0600Z/
Boston Harbor-
1004 PM EST Fri Jan 18 2019

...GALE WATCH REMAINS IN EFFECT FROM SATURDAY EVENING THROUGH
LATE SUNDAY NIGHT...

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 35 
  kt. Waves Around 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ236-191115-
/O.CON.KBOX.GL.A.0003.190120T1200Z-190121T0600Z/
Narragansett Bay-
1004 PM EST Fri Jan 18 2019

...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE
SUNDAY NIGHT...

* WINDS AND SEAS...North winds 10 to 20 kt with gusts up to 40 
  kt. Waves 2 to 3 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

643 
WHUS71 KBOX 190929
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
429 AM EST Sat Jan 19 2019

ANZ250-254>256-191730-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
429 AM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 45 kt.
  Seas 9 to 14 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231>235-237-251-191730-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
429 AM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 45 kt.
  Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ230-191730-
/O.CON.KBOX.GL.A.0003.190120T0300Z-190121T0600Z/
Boston Harbor-
429 AM EST Sat Jan 19 2019

...GALE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH LATE
SUNDAY NIGHT...

* WINDS AND SEAS...Northeast winds 15 to 20 kt with gusts up to 
  35 kt. Waves 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ236-191730-
/O.CON.KBOX.GL.A.0003.190120T1200Z-190121T0600Z/
Narragansett Bay-
429 AM EST Sat Jan 19 2019

...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE
SUNDAY NIGHT...

* WINDS AND SEAS...North winds 10 to 20 kt with gusts up to 40 kt.
  Waves 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

372 
WHUS71 KBOX 191445
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
945 AM EST Sat Jan 19 2019

ANZ250-254>256-192245-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
945 AM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 45 
  kt. Seas 9 to 14 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231>235-237-251-192245-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
945 AM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 45 
  kt. Seas 7 to 10 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ230-192245-
/O.CON.KBOX.GL.A.0003.190120T0300Z-190121T0600Z/
Boston Harbor-
945 AM EST Sat Jan 19 2019

...GALE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH LATE
SUNDAY NIGHT...

* WINDS AND SEAS...Northeast winds 15 to 20 kt with gusts up to 
  35 kt. Waves 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

ANZ236-192245-
/O.CON.KBOX.GL.A.0003.190120T1200Z-190121T0600Z/
Narragansett Bay-
945 AM EST Sat Jan 19 2019

...GALE WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE
SUNDAY NIGHT...

* WINDS AND SEAS...North winds 10 to 20 kt with gusts up to 40 
  kt. Waves 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased...but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

895 
WHUS71 KBOX 192043
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
343 PM EST Sat Jan 19 2019

ANZ250-254>256-200445-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
343 PM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

* WINDS AND SEAS...Southwest winds 20 to 30 kt with gusts up to 
  45 kt. Seas 10 to 15 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231>235-237-251-200445-
/O.CON.KBOX.GL.W.0005.190120T0300Z-190121T1200Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
343 PM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 6 to 11 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ236-200445-
/O.UPG.KBOX.GL.A.0003.190120T1200Z-190121T0600Z/
/O.NEW.KBOX.SC.Y.0012.190120T0500Z-190121T1200Z/
Narragansett Bay-
343 PM EST Sat Jan 19 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
EST MONDAY...

The National Weather Service in Boston/Norton has issued a Small
Craft Advisory, which is in effect from midnight tonight to 7 AM
EST Monday. The Gale Watch is no longer in effect.

* WINDS AND SEAS...Northwest winds 10 to 20 kt with gusts up to 
  30 kt. Waves 6 to 9 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

ANZ230-200445-
/O.UPG.KBOX.GL.A.0003.190120T0300Z-190121T0600Z/
/O.NEW.KBOX.SC.Y.0012.190120T0300Z-190121T1200Z/
Boston Harbor-
343 PM EST Sat Jan 19 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM
EST MONDAY...

The National Weather Service in Boston/Norton has issued a Small
Craft Advisory, which is in effect from 10 PM this evening to
7 AM EST Monday. The Gale Watch is no longer in effect.

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 30 
  kt. Waves 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

546 
WHUS71 KBOX 200320
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1020 PM EST Sat Jan 19 2019

ANZ250-254>256-201130-
/O.CON.KBOX.GL.W.0005.000000T0000Z-190121T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
1020 PM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST MONDAY...

* WINDS AND SEAS...Southwest winds 20 to 30 kt with gusts up to 
  45 kt. Seas 10 to 15 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231>235-237-251-201130-
/O.CON.KBOX.GL.W.0005.000000T0000Z-190121T1200Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
1020 PM EST Sat Jan 19 2019

...GALE WARNING REMAINS IN EFFECT UNTIL 7 AM EST MONDAY...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 6 to 11 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ236-201130-
/O.CON.KBOX.SC.Y.0012.190120T0500Z-190121T1200Z/
Narragansett Bay-
1020 PM EST Sat Jan 19 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST MONDAY...

* WINDS AND SEAS...Northwest winds 10 to 20 kt with gusts up to 
  30 kt. Waves 6 to 9 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

ANZ230-201130-
/O.CON.KBOX.SC.Y.0012.000000T0000Z-190121T1200Z/
Boston Harbor-
1020 PM EST Sat Jan 19 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST MONDAY...

* WINDS AND SEAS...North winds 15 to 25 kt with gusts up to 30 
  kt. Waves 4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

562 
WHUS71 KBOX 200913
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
413 AM EST Sun Jan 20 2019

ANZ232-201715-
/O.EXT.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.UP.W.0001.190121T0700Z-190122T1100Z/
Nantucket Sound-
413 AM EST Sun Jan 20 2019

...GALE WARNING NOW IN EFFECT UNTIL 6 AM EST TUESDAY...
...HEAVY FREEZING SPRAY WARNING IN EFFECT FROM 2 AM MONDAY TO
6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a Heavy
Freezing Spray Warning, which is in effect from 2 AM Monday to
6 AM EST Tuesday.

* WINDS AND SEAS...West winds 15 to 25 kt with gusts up to 40 kt.
  Seas 3 to 6 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heavy Freezing Spray Warning means heavy freezing spray is
expected to rapidly accumulate on vessels. These conditions can
be extremely hazardous to navigation. The U.S. Coast Guard
advises mariners to check and ensure all life saving devices
remain free of ice. Mariners not trained to operate in these
conditions, or vessels not properly equipped to do so, should
remain in port or avoid the warning area.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231-233>235-237-251-201715-
/O.EXT.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Cape Cod Bay-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-Massachusetts Bay and Ipswich Bay-
413 AM EST Sun Jan 20 2019

...GALE WARNING NOW IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a
Freezing Spray Advisory, which is in effect from 11 PM this
evening to 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 6 to 11 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ250-254>256-201715-
/O.EXT.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
413 AM EST Sun Jan 20 2019

...GALE WARNING NOW IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a
Freezing Spray Advisory, which is in effect from 11 PM this
evening to 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 20 to 30 kt with gusts up to 
  45 kt. Seas 9 to 14 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ236-201715-
/O.EXT.KBOX.SC.Y.0012.000000T0000Z-190122T1100Z/
Narragansett Bay-
413 AM EST Sun Jan 20 2019

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EST TUESDAY...

* WINDS AND SEAS...Northwest winds 10 to 20 kt with gusts up to
  30 kt. Waves 2 to 4 feet, except up to 10 feet and the bay 
  entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

ANZ230-201715-
/O.EXT.KBOX.SC.Y.0012.000000T0000Z-190122T1100Z/
Boston Harbor-
413 AM EST Sun Jan 20 2019

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM EST TUESDAY...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to
  30 kt. Waves 2 to 3 feet, except up to 9 feet at the outer 
  harbor entrance.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

716 
WHUS71 KBOX 201559
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1059 AM EST Sun Jan 20 2019

ANZ232-210000-
/O.CON.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.CON.KBOX.UP.W.0001.190121T0700Z-190122T1100Z/
Nantucket Sound-
1059 AM EST Sun Jan 20 2019

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST TUESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 2 AM
MONDAY TO 6 AM EST TUESDAY...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 6 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heavy Freezing Spray Warning means heavy freezing spray is
expected to rapidly accumulate on vessels. These conditions can
be extremely hazardous to navigation. The U.S. Coast Guard
advises mariners to check and ensure all life saving devices
remain free of ice. Mariners not trained to operate in these
conditions, or vessels not properly equipped to do so, should
remain in port or avoid the warning area.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ231-233>235-237-251-210000-
/O.CON.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.CON.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Cape Cod Bay-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-Massachusetts Bay and Ipswich Bay-
1059 AM EST Sun Jan 20 2019

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 6 AM EST TUESDAY...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 6 to 11 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ250-254>256-210000-
/O.CON.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.CON.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
1059 AM EST Sun Jan 20 2019

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 6 AM EST TUESDAY...

* WINDS AND SEAS...Northwest winds 20 to 30 kt with gusts up to 
  45 kt. Seas 9 to 14 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ236-210000-
/O.CON.KBOX.SC.Y.0012.000000T0000Z-190122T1100Z/
Narragansett Bay-
1059 AM EST Sun Jan 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WINDS AND SEAS...Northwest winds 10 to 20 kt with gusts up to 
  30 kt. Waves 5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

ANZ230-210000-
/O.CON.KBOX.SC.Y.0012.000000T0000Z-190122T1100Z/
Boston Harbor-
1059 AM EST Sun Jan 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
TUESDAY...

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  30 kt. Waves Around 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 25 to 33 knots,
or seas 5 feet or greater, are expected to produce hazardous wave
conditions to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these
conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

341 
WHUS71 KBOX 202013
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
313 PM EST Sun Jan 20 2019

ANZ232-210415-
/O.CAN.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190120T2300Z-190122T1100Z/
/O.CON.KBOX.UP.W.0001.190121T0700Z-190122T1100Z/
Nantucket Sound-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT UNTIL 6 AM EST TUESDAY...
...HEAVY FREEZING SPRAY WARNING REMAINS IN EFFECT FROM 2 AM
MONDAY TO 6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect until 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  40 kt. Seas 3 to 6 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heavy Freezing Spray Warning means heavy freezing spray is
expected to rapidly accumulate on vessels. These conditions can
be extremely hazardous to navigation. The U.S. Coast Guard
advises mariners to check and ensure all life saving devices
remain free of ice. Mariners not trained to operate in these
conditions, or vessels not properly equipped to do so, should
remain in port or avoid the warning area.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ233-234-210415-
/O.CAN.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190120T2300Z-190122T1100Z/
/O.CON.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Vineyard Sound-Buzzards Bay-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect until 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Seas 3 to 5 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ231-251-210415-
/O.CAN.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190120T2300Z-190122T1100Z/
/O.CON.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect until 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 20 to 30 kt with gusts up to 
  35 kt. Seas 5 to 8 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ235-237-210415-
/O.CAN.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190120T2300Z-190122T1100Z/
/O.CON.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Rhode Island Sound-Block Island Sound-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect until 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 20 to 30 kt with gusts up to 
  40 kt. Seas 6 to 9 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ250-254>256-210415-
/O.CAN.KBOX.GL.W.0005.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190120T2300Z-190122T1100Z/
/O.CON.KBOX.UP.Y.0003.190121T0400Z-190122T1100Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
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-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT UNTIL 6 AM EST TUESDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 6 AM EST TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect until 6 AM EST Tuesday.

* WINDS AND SEAS...Northwest winds 20 to 30 kt with gusts up to 
  40 kt. Seas 7 to 12 feet.

* FREEZING SPRAY...Develops this evening and continues through 
  Monday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

A Freezing Spray Advisory means that light to moderate
accumulation of ice is expected on vessels. Operating a vessel in
freezing spray can be hazardous. The U.S. Coast Guard advises
mariners to check and ensure all life saving devices remain free
of ice.

&&

$$

ANZ230-210415-
/O.UPG.KBOX.SC.Y.0012.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190121T0500Z-190122T1100Z/
Boston Harbor-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM EST
TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect from midnight tonight to 6 AM EST
Tuesday. The Small Craft Advisory is no longer in effect.

* WINDS AND SEAS...Northwest winds 15 to 25 kt with gusts up to 
  35 kt. Waves Around 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

ANZ236-210415-
/O.UPG.KBOX.SC.Y.0012.000000T0000Z-190122T1100Z/
/O.NEW.KBOX.GL.W.0006.190121T0500Z-190122T1100Z/
Narragansett Bay-
313 PM EST Sun Jan 20 2019

...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM EST
TUESDAY...

The National Weather Service in Boston/Norton has issued a Gale
Warning, which is in effect from midnight tonight to 6 AM EST
Tuesday. The Small Craft Advisory is no longer in effect.

* WINDS AND SEAS...Northwest winds 15 to 20 kt with gusts up to 
  35 kt. Waves 3 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

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

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

Area Forecast Discussion
National Weather Service Boston/Norton MA
301 PM EST Fri Jan 18 2019

.SYNOPSIS...
A weak cold front passes thru our area this evening, but with
minimal moisture dry conditions are expected tonight. High
pressure keeps most of Saturday dry, though clouds will
increase. A major winter storm will impact the region Saturday
night into Sunday, but exact precipitation types and impacts
remain uncertain. Arctic air follows this system into early next
week. Another weather system may bring rain and snow next
Wednesday.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...

3 PM Update...

Mostly cloudy skies linger thru the remainder of this afternoon,
with a few flurries possible across far northern and western MA.
Otherwise, a low pressure center tracking well N of our area,
drags a weak cold front thru SNE during this evening. Moisture
in our area is decreasing as this feature approaches, so mainly
expecting a wind shift to the NW. Decreasing moisture under the
NW flow should allow for a period of clearing skies. However mid
and high deck clouds well in advance of our next system could
be streaming our way towards daybreak Saturday.

The N/NW winds bring CAA and temperatures dipping into the teens and
low 20s, except 25 to 30 along the Cape/Islands and immediate south
coastal MA/RI. Over the far interior, we have a chance of seeing a
few spots dip into the single digits in the far interior late
tonight.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/...

Saturday we start off with surface ridging from high pressure over
southern Quebec. Then we see an increase in mid and upper level
moisture well ahead of a large storm system, which will be tracking
northeastward thru the lower Ohio River Valley.

As winds shift to the NNE during Sat afternoon, there is the
possibility for some ocean effect snow showers. This should mainly
be south of Boston into the upper Cape, but there is a slight
chance of a snow shower over Cape Ann.

Otherwise, looking to the large storm system approaching from
the SW...light snow is possible late in the afternoon as the
column saturates. Have slight chance to low chance pops for mid
Sat afternoon, increasing chances from W to E. High temps range
from the mid 20s to low 30s across much of the area.

&&

.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
* Major Winter Storm Sat night/Sun
* Uncertainty remains in regards to exact precipitation types
  and impacts

High pressure over eastern Canada will keep the weather dry and
relatively cold across most of the region through mid to late
Saturday afternoon. A major winter storm will impact the region
Saturday evening through Sunday afternoon, but specific
precipitation types/impacts remain uncertain at this time. We
will break things down a bit more below.

1) Snow Amounts and Uncertainty:

Snow will overspread just about the entire region by early Saturday
evening.  A strong east to southeasterly low level jet of 50+ knots
will result in strong forcing. So a period of 1 to 2 inch per
hour snowfall rates remain possible, especially N and W of I-495
and I-395. Still thinking the freezing line makes it into
interior southern New England Sunday morning, at least about
4-5 kt up. It will take longer to drive this freezing line NW
lower in the atmosphere.

Where the melting layer sets up will directly modulate the
amount of snow versus sleet. Where it largely remains snow,
looking likely for close to a foot plus of accumulation. There
looks to be about a 6 hour window Sunday morning where sleet may
impact snow accumulations across the interior. Even a couple
hours of sleet during this critical time can drastically reduce
snow accumulation. This is the most difficult portion of this
forecast. Additional changes are possible with later forecasts.

2) Sleet and Freezing Rain Threat:

As we mentioned in the prior section, the amount of warm air
aloft overspreading the region should allow for snow to change
to sleet across a good portion of southern New England, at least
for a time. Significant amounts of sleet are possible given the
depth/strength of the low level cold air near and north of the
MA Turnpike. While we can not rule out some freezing rain north
of the the Pike too, the greater risk remains across portions
of northern CT, and particularly into RI/SE MA. This is where
the warm nose is lower and the depth of the sub-freezing air is
more shallow.

It is a very difficult forecast and tough to pinpoint this far
out. If the coastal front allows temps to climb above freezing,
would expect some light ice accretion as temperatures will
certainly drop quickly Sunday afternoon. However, if those
areas stay below freezing ice accretion of one quarter to one
half inch would be possible across portions of this region. Will
need to be watched for the risk of scattered power outages if
higher ice accretion amounts are realized.

3) Transition Back To Snow/Flash Freeze Potential:

As the low pressure system tracks near or south of the Islands,
any remaining mixed precipitation will transition back to snow
later Sunday morning/afternoon. While some minor additional
snow accumulations are possible, the bigger story will be the
rapid falling temperatures on the coastal plain. High resolution
models indicate that much of the region may fall into the teens
by Sunday afternoon. Areas near, and especially southeast of,
the Boston to Providence corridor may experience a flash freeze.

4) Main Impacts/Concerns:

Besides the heavy wintry precipitation, the greatest concerns
are for scattered power outages where ice accumulation occurs.
Also some concern about black ice as untreated wet surfaces
freeze over Sunday afternoon and evening. Gusty winds will also
make it feel much colder during the afternoon and evening hours.

Sunday night-Monday...

Weekend storm departs through the Maritimes Sunday night, but
continues to draw colder air south into Southern New England. High
pressure over the Great Lakes and the storm in the Maritimes will
mean a strong pressure gradient over New England, maintaining the
cold advection and resulting mixing over our area.

Tuesday through Thursday...

High pressure moves over New England Tuesday. Radiational cooling
Tuesday morning will allow min temps in the single numbers and below
zero. The high pressure will continue dry weather through Tuesday.

Low pressure that moves on shore on the Pacific coast this weekend
will move across the country next week, bringing rain or snow to
Southern New England Wednesday and possibly Thursday.

&&

.AVIATION /20Z 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/...High confidence.

Thru 00Z this evening...VFR along most of eastern MA/RI, except
along south coastal RI and southeast MA where some MVFR to localized
IFR CIGs linger. A mix of low VFR to MVFR CIGS across the interior,
with some patchy -SN possible in far western MA thru 21Z.

Tonight...Becoming VFR early. Winds shift from SW/W to N/NW. Could
become breezy along east coastal MA/Cape/Islands w/NW winds gusting
to 20 kts.

Saturday...Mainly VFR, with local MVFR CIGs possible late in the day
especially across SE MA/Cape/Islands. Some ocean effect -SHSN
possible along the south shore of MA in the afternoon. MVFR
CIGs/VSBYs in -SN approaches BAF/BDL towards 00Z.

KBOS Terminal...High confidence in TAF. There is a chance for a
period of MVFR CIGs thru 22Z.

KBDL Terminal...High confidence in TAF.

Outlook /Saturday Night through Tuesday/...

Saturday Night: Mainly IFR, with local MVFR possible. Strong
winds with gusts to 40 kt. Wintry mix of SN and FZRA.

Sunday: Mainly IFR, with local MVFR possible. Strong winds with
areas gusts to 40 kt. Wintry mix of RA and PL, with a chance of
FZRA or SN.

Sunday Night: Mainly VFR, with local MVFR possible. Strong
winds with local gusts to 40 kt. Slight chance for a wintry mix
of FZRA or SN.

Martin Luther King Jr Day through Monday Night: VFR. Windy with
gusts to 35 kt.

Tuesday: VFR. Breezy.

&&

.MARINE...
Forecaster Confidence Levels...

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

Short Term /through Saturday/...

Tonight...Winds become NW and increase, with gusts to 25 kts
possible, especially over the eastern waters. Seas building to
4 feet on the eastern outer coastal waters.

Saturday...N winds 10 to 20 kts become ENE during the afternoon.
Seas 2 to 4 ft.

Outlook /Saturday Night through Tuesday/...

Saturday Night: Moderate risk for gale force winds with gusts
up to 40 kt. Rough seas up to 11 ft. Rain and snow. Areas of
visibility 1 nm or less.

Sunday: Moderate risk for gale force winds with gusts up to
40 kt. Rough seas up to 15 ft. Rain, with snow likely. Local
visibility 1 nm or less.

Sunday Night: Moderate risk for gale force winds with gusts up
to 40 kt. Rough seas up to 14 ft. Freezing spray, with a chance
of snow.

Martin Luther King Jr Day: Low risk for gale force winds with
gusts up to 40 kt. Rough seas up to 12 ft. Freezing spray, with
a chance of snow showers.

Monday Night: Low risk for gale force winds with gusts up to
35 kt. Rough seas up to 11 ft. Freezing spray.

Tuesday: Low risk for Small Craft Advisory winds with gusts up
to 30 kt. Local rough seas. Freezing spray.

&&

.TIDES/COASTAL FLOODING...
An approaching deep low pressure has been trending on a
somewhat southern track with the last few model runs. The
consequences are twofold: 1. Extended period of long fetch
onshore flow for the E coast and 2. Low level jet energy becomes
oriented with a stronger E component, compounding the surge.

By the time of high tide Sunday along the east coast (roughly
10 AM local), surge should be approaching 2.0 ft, which
combined with offshore wave action around 15 ft should lead to
localized minor to moderate E coastal flooding given a high
astronomical base tide in Boston around 11.6 ft MLLW. There are
still track variances, so these will be better resolved with
later forecasts. Confidence remains high enough to continue a
Coastal Flood Watch, with a particularly focus from Scituate to
the New Hampshire border.

For the south coast, surge will not be as high given the wind
trajectory, likely between 1.0-1.5 ft. While this may lead to
some pockets of minor coastal flooding around the 7 AM Sunday
tide, confidence is not as high. So will hold off on headlines
for the time being.

Will also need to monitor Mon AM high tide (11.9 ft MLLW in
Boston Harbor). As continued wave action and lingering swells
may lead to pockets of minor flooding along the E coast as well,
even as winds shift to a stronger westerly component.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Winter Storm Watch from Saturday afternoon through Sunday
     evening for CTZ002>004.
MA...Coastal Flood Warning from 8 AM to noon EST Sunday for MAZ007-
     015-016-019.
     Winter Storm Watch from Saturday afternoon through Sunday
     evening for MAZ009-011>013-015>021.
     Winter Storm Warning from 4 PM Saturday to 7 PM EST Sunday for
     MAZ002>008-010-014-026.
     Coastal Flood Advisory from 5 AM to 10 AM EST Sunday for
     MAZ020-021.
     Coastal Flood Advisory from 8 AM to noon EST Sunday for
     MAZ022>024.
RI...Winter Storm Watch from Saturday afternoon through Sunday
     evening for RIZ001>007.
     Coastal Flood Advisory from 5 AM to 10 AM EST Sunday for
     RIZ004>007.
MARINE...Gale Warning from 10 PM Saturday to 7 AM EST Monday for
     ANZ231>235-237-250-251-254>256.
     Gale Watch from Saturday evening through late Sunday night for
     ANZ230.
     Gale Watch from Sunday morning through late Sunday night for
     ANZ236.

&&

SYNOPSIS...Belk/BW/NMB
NEAR TERM...Belk/BW/NMB
SHORT TERM...NMB
LONG TERM...Belk
AVIATION...Belk/BW/NMB
MARINE...Belk/BW/NMB
TIDES/COASTAL FLOODING...Staff

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
301 PM EST Thu Jan 17 2019

CTZ002>004-MAZ002>006-008>014-017-018-020-021-026-RIZ001>007-182015-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Central Middlesex MA-
Western Essex MA-Western Hampshire MA-Western Hampden MA-
Eastern Hampshire MA-Eastern Hampden MA-Southern Worcester MA-
Western Norfolk MA-Southeast Middlesex MA-Northern Bristol MA-
Western 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-
301 PM EST Thu Jan 17 2019

...WINTER STORM WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...

This Hazardous Weather Outlook is for northern Connecticut, central
Massachusetts, eastern Massachusetts, northeastern Massachusetts,
southeastern Massachusetts, western Massachusetts, northern Rhode
Island and southern Rhode Island.

.DAY ONE...This afternoon and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Winter Storm Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ007-015-016-019-182015-
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-Eastern Plymouth MA-
301 PM EST Thu Jan 17 2019

...WINTER STORM WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...
...COASTAL FLOOD WATCH IN EFFECT SUNDAY MORNING...

This Hazardous Weather Outlook is for eastern Massachusetts,
northeastern Massachusetts and southeastern Massachusetts.

.DAY ONE...This afternoon and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Winter Storm Watch.
   Coastal Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ022-024-182015-
Barnstable MA-Nantucket MA-
301 PM EST Thu Jan 17 2019

...COASTAL FLOOD WATCH IN EFFECT SUNDAY MORNING...

This Hazardous Weather Outlook is for southeastern Massachusetts.

.DAY ONE...This afternoon and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Coastal Flood Watch.

A wind advisory may also be needed late Saturday night into Sunday
morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MAZ023-RIZ008-182015-
Dukes MA-Block Island RI-
301 PM EST Thu Jan 17 2019

This Hazardous Weather Outlook is for southeastern Massachusetts
and southern Rhode Island.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ231>235-237-250-251-254>256-182015-
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block 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-
301 PM EST Thu Jan 17 2019

...GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING...

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

.DAY ONE...This afternoon and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Gale Watch.

Sunday night into Tuesday...
There is a high risk for freezing spray which may require headlines.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230-236-182015-
Boston Harbor-Narragansett Bay-
301 PM EST Thu Jan 17 2019

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

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Frank

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

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@NWSBoston