Gale Warning 9, NWS Boston/Norton, MA

587 
WHUS71 KBOX 180752
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
252 AM EST Sun Feb 18 2024

ANZ231-182100-
/O.UPG.KBOX.SC.Y.0021.000000T0000Z-240219T1200Z/
/O.EXA.KBOX.GL.W.0009.240218T1600Z-240219T0600Z/
Cape Cod Bay-
252 AM EST Sun Feb 18 2024

...GALE WARNING IN EFFECT FROM 11 AM THIS MORNING TO 1 AM EST
MONDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 3 to 5 feet expected.

* WHERE...Cape Cod Bay.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ234-237-182100-
/O.UPG.KBOX.SC.Y.0021.000000T0000Z-240219T1200Z/
/O.EXA.KBOX.GL.W.0009.240218T1600Z-240219T0600Z/
Buzzards Bay-Block Island Sound-
252 AM EST Sun Feb 18 2024

...GALE WARNING IN EFFECT FROM 11 AM THIS MORNING TO 1 AM EST
MONDAY...

* WHAT...West winds 20 to 30 kt with gusts up to 40 kt and seas 
  4 to 6 feet expected.

* WHERE...In Massachusetts coastal waters, Buzzards Bay. In 
  Rhode Island coastal waters, Block Island Sound.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ232-233-235-182100-
/O.EXT.KBOX.GL.W.0009.240218T1600Z-240219T0600Z/
Nantucket Sound-Vineyard Sound-Rhode Island Sound-
252 AM EST Sun Feb 18 2024

...GALE WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 1 AM EST
MONDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  seas 4 to 6 feet expected.

* WHERE...In Massachusetts coastal waters, Nantucket Sound and 
  Vineyard Sound. In Rhode Island coastal waters, Rhode Island 
  Sound.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ254>256-182100-
/O.CON.KBOX.GL.W.0009.240218T1600Z-240219T0600Z/
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-
252 AM EST Sun Feb 18 2024

...GALE WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 1 AM
EST MONDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  seas 5 to 8 feet expected.

* WHERE...In Massachusetts coastal waters, Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm and 
  Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket. In Rhode Island coastal waters, 
  Coastal Waters from Montauk NY to Marthas Vineyard extending 
  out to 20 nm South of Block Island.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ250-182100-
/O.EXT.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
252 AM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and seas 
  4 to 6 feet.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ251-182100-
/O.EXT.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Massachusetts Bay and Ipswich Bay-
252 AM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 
  2 to 3 feet.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ230-182100-
/O.EXT.KBOX.SC.Y.0021.000000T0000Z-240219T1500Z/
Boston Harbor-
252 AM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 AM EST MONDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 2 feet.

* WHERE...Boston Harbor.

* WHEN...Until 10 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ236-182100-
/O.EXT.KBOX.SC.Y.0021.000000T0000Z-240219T0900Z/
Narragansett Bay-
252 AM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves 
  3 to 5 feet.

* WHERE...Narragansett Bay.

* WHEN...Until 4 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

114 
WHUS71 KBOX 182000
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
300 PM EST Sun Feb 18 2024

ANZ254>256-190600-
/O.CON.KBOX.GL.W.0009.000000T0000Z-240219T0600Z/
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-
300 PM EST Sun Feb 18 2024

...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  seas 5 to 8 feet expected.

* WHERE...In Massachusetts coastal waters, Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm and 
  Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket. In Rhode Island coastal waters, 
  Coastal Waters from Montauk NY to Marthas Vineyard extending 
  out to 20 nm South of Block Island.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ232>235-237-190600-
/O.CON.KBOX.GL.W.0009.000000T0000Z-240219T0600Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-
300 PM EST Sun Feb 18 2024

...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY...

* WHAT...Southwest winds 20 to 30 kt with gusts up to 40 kt and 
  seas 4 to 6 feet expected.

* WHERE...In Massachusetts coastal waters, Nantucket Sound and 
  Vineyard Sound. In Rhode Island coastal waters, Rhode Island 
  Sound.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ231-190600-
/O.CON.KBOX.GL.W.0009.000000T0000Z-240219T0600Z/
Cape Cod Bay-
300 PM EST Sun Feb 18 2024

...GALE WARNING REMAINS IN EFFECT UNTIL 1 AM EST MONDAY...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 3 to 5 feet expected.

* WHERE...Cape Cod Bay.

* WHEN...From 11 AM this morning to 1 AM EST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ250-190900-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
300 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and seas 
  4 to 6 feet.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ251-190900-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Massachusetts Bay and Ipswich Bay-
300 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 
  2 to 3 feet.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ230-190900-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T1500Z/
Boston Harbor-
300 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
MONDAY...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and waves 
  1 to 2 feet.

* WHERE...Boston Harbor.

* WHEN...Until 10 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ236-190900-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T0900Z/
Narragansett Bay-
300 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and waves 
  3 to 5 feet.

* WHERE...Narragansett Bay.

* WHEN...Until 4 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

756 
WHUS71 KBOX 190157
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
857 PM EST Sun Feb 18 2024

ANZ231-191500-
/O.CAN.KBOX.GL.W.0009.000000T0000Z-240219T0600Z/
/O.EXA.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Cape Cod Bay-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...
...GALE WARNING IS CANCELLED...

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and seas 
  3 to 5 feet.

* WHERE...Cape Cod Bay.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ254>256-191500-
/O.CAN.KBOX.GL.W.0009.000000T0000Z-240219T0600Z/
/O.EXA.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
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-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...
...GALE WARNING IS CANCELLED...

* WHAT...West winds 10 to 20 kt with gusts up to 30 kt and seas 
  5 to 8 feet.

* WHERE...In Massachusetts coastal waters, Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm and 
  Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket. In Rhode Island coastal waters, 
  Coastal Waters from Montauk NY to Marthas Vineyard extending 
  out to 20 nm South of Block Island.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ232>235-237-191200-
/O.CAN.KBOX.GL.W.0009.000000T0000Z-240219T0600Z/
/O.EXB.KBOX.SC.Y.0021.000000T0000Z-240219T1200Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST MONDAY...
...GALE WARNING IS CANCELLED...

* WHAT...West winds 15 to 20 kt with gusts up to 30 kt and seas 
  3 to 5 feet.

* WHERE...In Massachusetts coastal waters, Nantucket Sound, 
  Vineyard Sound and Buzzards Bay. In Rhode Island coastal 
  waters, Rhode Island Sound and Block Island Sound.

* WHEN...Until 7 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ250-191500-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...West winds 15 to 25 kt with gusts up to 30 kt and seas 
  4 to 6 feet.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ251-191500-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T1800Z/
Massachusetts Bay and Ipswich Bay-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST MONDAY...

* WHAT...West winds 15 to 20 kt with gusts up to 30 kt and seas 
  2 to 3 feet.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...Until 1 PM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ230-191500-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T1500Z/
Boston Harbor-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST
MONDAY...

* WHAT...West winds 15 to 20 kt with gusts up to 25 kt and waves 
  around 2 feet.

* WHERE...Boston Harbor.

* WHEN...Until 10 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ236-190900-
/O.CON.KBOX.SC.Y.0021.000000T0000Z-240219T0900Z/
Narragansett Bay-
857 PM EST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY...

* WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 
  2 to 4 feet.

* WHERE...Narragansett Bay.

* WHEN...Until 4 AM EST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

Area Forecast Discussion
National Weather Service Boston/Norton MA
314 PM EST Sat Feb 17 2024

.SYNOPSIS...

Snow squall activity calms down quickly this evening from west
to east. Dry and cold overnight with a mix of clouds and sun on
Sunday. Mainly dry with increasing temperatures through
Wednesday. Unsettled weather Thursday into next weekend.

&&

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

Low pressure that brought morning snow to southern New England
continues to move seaward overnight as potent shortwave, associated
with this afternoon's snow squall activity, pivots through the
region this afternoon and evening. Hi-resolution guidance performed
well regarding the timing and spatial resolution of this afternoon's
squalls, which leads us to anticipate that squall activity will die
down quickly this afternoon, especially as we lose daytime
heating/instability. Hi-res solutions are supported by PWATs
dropping by half as the shortwave axis crests over SNE, from
~0.25" to 0.1", which will stunt any additional snow shower
activity. Additionally, dewpoints will quickly drop into the
single to perhaps negative single digits this evening.

It will be cold night, especially considering wind chills, as robust
CAA streams in behind this afternoon's passing front. Radiational
cooling will be stunted by brisk NW flow, which likely gusts at or
above 5-15kt overnight; our saving grace from falling back to
dewpoints given clear skies, areas of fresh snow cover, and a very
dry airmass. Still, expecting widespread 10s by sunrise tomorrow.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/...

A mix of clouds and sun is on tap for Sunday as another shortwave
rides down the axis of the longwave trough centered over Quebec and
Ontario. Low pressure accompanies this shortwave but will
become hung up over southern Quebec, resulting in increased
cloudiness for New England. In fact, the position of the low
will yield sunnier conditions south of the MA Turnpike for much
of the day tomorrow as the relatively moisture starved low
(PWATs ~0.2"), will struggle to maintain widespread cloudiness.
An isolated snow shower can't be ruled out across northern
Worcester and Franklin counties early tomorrow morning as the
shortwave moves through.

Wind will be an issue again tomorrow as healthy 925mb LLJ of 30-40kt
drapes across much of the region. The good news, at least for those
who are cold averse, is that winds will shift to the WSW, so while
gusts will bring down apparent temperatures, they will lack that
biting Canadian chill. We'll tack a few degrees onto highs for
tomorrow thanks to WAA setting up on SW flow. Overall, should see
gusts to 30mph across portions of the interior.

Zonal flow dominates the mid levels tomorrow night which will help
to moderate lows even under clear skies. Wind gusts will carry
through at least the first half of the evening. Lows will fall into
the low to mid 20s region wide.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...

Key Points

* Mainly dry Monday through Wednesday with warming temperatures

* Unsettled weather heading into the end of next week

Monday - Wednesday

A 1035mb high pressure builds in and parks itself over the region
Monday through Wednesday leading to a stretch of dry and sunny
conditions to start the week. With decreasing WNW winds on Monday,
highs will only top out in the upper 30s to low 40s. Winds become
more southerly Tuesday and Wednesday allowing highs to moderate into
the 40s with an outside shot of 50F esspically Wednesday. With
mainly sunny skies under the strong high pressure, temps this week
could over achieve guidance so used a blend of the MOS and NBM to
bump temperatures up a bit during the day. With weak winds and clear
skies, expecting good radiational cooling both Tuesday and Wednesday
nights with lows dropping into the low to mid 20s.

Thursday and beyond

Forecast confidence breaks down significantly as model guidance
brings a coastal low passing well off shore on Thursday, then a
potent shortwave exiting the Great Lakes Friday into Saturday. There
is still significant spread among the guidance and ensemble sources,
however, what is more certain is that this period looks to be more
active and will need to be watched closely over the next week. High
temps remain above normal Thursday and Friday in the 40s, but trend
back towards the 30s for the weekend.

&&

.AVIATION /20Z SATURDAY THROUGH THURSDAY/...
Forecast Confidence Levels:

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

18z TAF Update:

Through tonight... Moderate confidence in afternoon snow

Generally MVFR to low end VFR outside of snow showers through
this afternoon. Brief IFR possible between 18-22Z from west to
east as snow squall activity moves across the region. Gusty NW
flow develops behind departing cold front, with gusts 20-25kt.
Gusts briefly subside after midnight. Widespread VFR through the
overnight hours.

Sunday and Sunday night... High Confidence

Blustery NW winds gusting again to around 25kt. Mix of clouds
and sun but generally VFR, with skies clearing south of the MA
Turnpike Sunday afternoon.

Tonight and Sunday...High confidence.

VFR. Gusty NW winds to 20-25 kt during the evening diminishing
overnight. Increasing SW winds Sunday with gusts 25-30 kt
developing along the south coast and Cape/Islands. gusts to 20
kt elsewhere. Change for briefly reduced cigs/vsby as snow
squall activity passes near the terminal around 20z. Light
coating of snow possible on runways.

KBOS TAF...High confidence. VFR. Change for briefly reduced
cigs/vsby to IFR as snow squall activity passes near the
terminal around 20z. Light coating of snow possible on runways.

KBDL TAF...High confidence. Generally MVFR, improving to MVFR
Brief IFR vsbys possible with any snow showers but confidence
not high enough to include in TAF.

Outlook /Monday through Thursday/...

Sunday Night: VFR. Windy with gusts up to 35 kt.

Washingtons Birthday: VFR. Windy with local gusts up to 30 kt.

Monday Night: VFR. Breezy.

Tuesday through Wednesday: VFR.

&&

.MARINE...
Forecaster Confidence Levels:

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

High confidence.

Strong northwest flow overnight with winds gusting to as high as
25kt over the waters. Winds further increase as they shift to
the southwest on Wednesday as a strong LLJ centers over the
southern outer waters. Expect gusts to 35kt or greater. A Gale
Warning ins in effect for most of the waters south of Rhode
Island and Cape Cod, with a Small Craft in place elsewhere.
Winds will peak Sunday evening. Seas will build to near 10ft
across the southern outer waters.

Outlook /Monday through Thursday/...

Sunday Night: Strong winds with gusts up to 35 kt. Areas of
rough seas.

Washingtons Birthday: Low risk for Small Craft Advisory winds
with local gusts up to 30 kt. Local rough seas.

Monday Night through Wednesday: Winds less than 25 kt.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 4 AM EST Sunday for ANZ230.
     Small Craft Advisory until 7 AM EST Monday for ANZ231-234-237-
     250-251.
     Gale Warning from 1 PM Sunday to 1 AM EST Monday for ANZ232-
     233-235.
     Small Craft Advisory until 1 AM EST Monday for ANZ236.
     Gale Warning from 11 AM Sunday to 1 AM EST Monday for
     ANZ254>256.

&&

SYNOPSIS...KP/KS
NEAR TERM...KS
SHORT TERM...KS
LONG TERM...KP
AVIATION...KP/KS
MARINE...KP/KS

Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
1127 AM EST Sat Feb 17 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0831 AM     Snow             2 E Berlin              41.62N 72.72W
02/17/2024  M2.0 inch        Hartford           CT   Public

0851 AM     Snow             1 NNE Berlin            41.62N 72.75W
02/17/2024  M2.0 inch        Hartford           CT   Trained Spotter

1117 AM     Snow             1 NNE Nantucket         41.28N 70.10W
02/17/2024  M1.9 inch        Nantucket          MA   Trained Spotter

1024 AM     Snow             3 ESE Westerly AP       41.33N 71.75W
02/17/2024  M1.8 inch        Washington         RI   Trained Spotter

0845 AM     Snow             3 SE Southington        41.57N 72.85W
02/17/2024  M1.5 inch        Hartford           CT   Public

1002 AM     Snow             2 E Vernon              41.82N 72.45W
02/17/2024  M1.5 inch        Tolland            CT   Public

1017 AM     Snow             1 W Tolland             41.87N 72.39W
02/17/2024  M1.5 inch        Tolland            CT   Public

1048 AM     Snow             2 S New Bedford         41.64N 70.93W
02/17/2024  M1.5 inch        Bristol            MA   Public

            Reported by Amateur Radio.

0846 AM     Snow             3 SSW West Hartford     41.73N 72.78W
02/17/2024  M1.4 inch        Hartford           CT   Trained Spotter

0900 AM     Snow             1 ENE East Hartford     41.77N 72.59W
02/17/2024  M1.2 inch        Hartford           CT   Trained Spotter

0700 AM     Snow             3 NNE Avon              41.84N 72.81W
02/17/2024  M1.0 inch        Hartford           CT   Trained Spotter

0721 AM     Snow             1 W Richmond            41.50N 71.66W
02/17/2024  U1.0 inch        Washington         RI   Public

            Reported by Amateur Radio.

0747 AM     Snow             Rocky Hill              41.67N 72.64W
02/17/2024  M1.0 inch        Hartford           CT   Trained Spotter

0906 AM     Snow             Swansea                 41.75N 71.19W
02/17/2024  M1.0 inch        Bristol            MA   Public

            Corrects previous snow report from Swansea.
            Reported by Amateur Radio.

1020 AM     Snow             Harrisville             41.97N 71.68W
02/17/2024  M1.0 inch        Providence         RI   Public

1035 AM     Snow             Acushnet                41.69N 70.90W
02/17/2024  M1.0 inch        Bristol            MA   Trained Spotter

1117 AM     Snow             3 WSW Smithfield        41.87N 71.60W
02/17/2024  M1.0 inch        Providence         RI   Trained Spotter

&&

Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
1211 PM EST Sat Feb 17 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0831 AM     Snow             2 E Berlin              41.62N 72.72W
02/17/2024  M2.0 inch        Hartford           CT   Public

0851 AM     Snow             1 NNE Berlin            41.62N 72.75W
02/17/2024  M2.0 inch        Hartford           CT   Trained Spotter

1117 AM     Snow             1 NNE Nantucket         41.28N 70.10W
02/17/2024  M1.9 inch        Nantucket          MA   Trained Spotter

1024 AM     Snow             3 ESE Westerly AP       41.33N 71.75W
02/17/2024  M1.8 inch        Washington         RI   Trained Spotter

1208 PM     Snow             1 NNW West Warwick      41.71N 71.52W
02/17/2024  U1.7 inch        Kent               RI   Trained Spotter

0845 AM     Snow             3 SE Southington        41.57N 72.85W
02/17/2024  M1.5 inch        Hartford           CT   Public

1002 AM     Snow             2 E Vernon              41.82N 72.45W
02/17/2024  M1.5 inch        Tolland            CT   Public

1017 AM     Snow             1 W Tolland             41.87N 72.39W
02/17/2024  M1.5 inch        Tolland            CT   Public

1048 AM     Snow             2 S New Bedford         41.64N 70.93W
02/17/2024  M1.5 inch        Bristol            MA   Public

            Reported by Amateur Radio.

0846 AM     Snow             3 SSW West Hartford     41.73N 72.78W
02/17/2024  M1.4 inch        Hartford           CT   Trained Spotter

0900 AM     Snow             1 ENE East Hartford     41.77N 72.59W
02/17/2024  M1.2 inch        Hartford           CT   Trained Spotter

0700 AM     Snow             3 NNE Avon              41.84N 72.81W
02/17/2024  M1.0 inch        Hartford           CT   Trained Spotter

0721 AM     Snow             1 W Richmond            41.50N 71.66W
02/17/2024  U1.0 inch        Washington         RI   Public

            Reported by Amateur Radio.

0747 AM     Snow             Rocky Hill              41.67N 72.64W
02/17/2024  M1.0 inch        Hartford           CT   Trained Spotter

0906 AM     Snow             Swansea                 41.75N 71.19W
02/17/2024  M1.0 inch        Bristol            MA   Public

            Corrects previous snow report from Swansea.
            Reported by Amateur Radio.

1020 AM     Snow             Harrisville             41.97N 71.68W
02/17/2024  M1.0 inch        Providence         RI   Public

1035 AM     Snow             Acushnet                41.69N 70.90W
02/17/2024  M1.0 inch        Bristol            MA   Trained Spotter

1117 AM     Snow             3 WSW Smithfield        41.87N 71.60W
02/17/2024  M1.0 inch        Providence         RI   Trained Spotter

&&

Special Weather Statement
National Weather Service Boston/Norton MA
1244 PM EST Sat Feb 17 2024

MAZ004>006-012-026-171845-
Northwest Middlesex County-Southern Worcester-Central Middlesex
County-Western Essex-Northern Worcester-
1244 PM EST Sat Feb 17 2024

...A BAND OF HEAVY SNOW WILL AFFECT WEST CENTRAL ESSEX...CENTRAL
WORCESTER AND MIDDLESEX COUNTIES...

At 1241 PM EST, a band of heavy snow was located along a line
extending from near Ashby to Barre. Movement was east at 25 mph.

Locations impacted include...
Worcester, Lowell, Lawrence, Framingham, Methuen, Leominster,
Fitchburg, Billerica, Marlborough, Shrewsbury, Chelmsford, Andover,
Dracut, Tewksbury, North Andover, Wilmington, Westford, Acton,
Gardner, and Hudson.

The snow can accumulate at a rate up to one inch per hour in this
band of snow. Be prepared for hazardous driving conditions. Consider
delaying travel if you will be going through this band of snow.

Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time when traveling.

LAT...LON 4273 7106 4221 7147 4234 7218 4271 7188
      4270 7129 4273 7126
TIME...MOT...LOC 1741Z 277DEG 22KT 4267 7186 4240 7208

Belk

Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
115 PM EST Sat Feb 17 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0831 AM     Snow             2 E Berlin              41.62N 72.72W
02/17/2024  M2.0 inch        Hartford           CT   Public

0851 AM     Snow             1 NNE Berlin            41.62N 72.75W
02/17/2024  M2.0 inch        Hartford           CT   Trained Spotter

1228 PM     Snow             2 WSW Burlington        41.75N 72.99W
02/17/2024  M2.0 inch        Hartford           CT   Trained Spotter

1117 AM     Snow             1 NNE Nantucket         41.28N 70.10W
02/17/2024  M1.9 inch        Nantucket          MA   Trained Spotter

1024 AM     Snow             3 ESE Westerly AP       41.33N 71.75W
02/17/2024  M1.8 inch        Washington         RI   Trained Spotter

1208 PM     Snow             1 NNW West Warwick      41.71N 71.52W
02/17/2024  U1.7 inch        Kent               RI   Trained Spotter

0845 AM     Snow             3 SE Southington        41.57N 72.85W
02/17/2024  M1.5 inch        Hartford           CT   Public

1002 AM     Snow             2 E Vernon              41.82N 72.45W
02/17/2024  M1.5 inch        Tolland            CT   Public

1017 AM     Snow             1 W Tolland             41.87N 72.39W
02/17/2024  M1.5 inch        Tolland            CT   Public

1048 AM     Snow             2 S New Bedford         41.64N 70.93W
02/17/2024  M1.5 inch        Bristol            MA   Public

            Reported by Amateur Radio.

0846 AM     Snow             3 SSW West Hartford     41.73N 72.78W
02/17/2024  M1.4 inch        Hartford           CT   Trained Spotter

0900 AM     Snow             1 ENE East Hartford     41.77N 72.59W
02/17/2024  M1.2 inch        Hartford           CT   Trained Spotter

0700 AM     Snow             3 NNE Avon              41.84N 72.81W
02/17/2024  M1.0 inch        Hartford           CT   Trained Spotter

0721 AM     Snow             1 W Richmond            41.50N 71.66W
02/17/2024  U1.0 inch        Washington         RI   Public

            Reported by Amateur Radio.

0747 AM     Snow             Rocky Hill              41.67N 72.64W
02/17/2024  M1.0 inch        Hartford           CT   Trained Spotter

0906 AM     Snow             Swansea                 41.75N 71.19W
02/17/2024  M1.0 inch        Bristol            MA   Public

            Corrects previous snow report from Swansea.
            Reported by Amateur Radio.

1020 AM     Snow             Harrisville             41.97N 71.68W
02/17/2024  M1.0 inch        Providence         RI   Public

1035 AM     Snow             Acushnet                41.69N 70.90W
02/17/2024  M1.0 inch        Bristol            MA   Trained Spotter

1117 AM     Snow             3 WSW Smithfield        41.87N 71.60W
02/17/2024  M1.0 inch        Providence         RI   Trained Spotter

1215 PM     Snow             1 NE Barrington         41.74N 71.31W
02/17/2024  M1.0 inch        Bristol            RI   Trained Spotter

&&

Special Weather Statement
National Weather Service Boston/Norton MA
213 PM EST Sat Feb 17 2024

CTZ002>004-MAZ011-012-RIZ001-003-172015-
Hartford CT-Tolland CT-Windham CT-Southern Worcester MA-
Eastern Hampden MA-Northwest Providence RI-Western Kent RI-
213 PM EST Sat Feb 17 2024

...A SNOW SQUALL WILL AFFECT PARTS OF HARTFORD...TOLLAND...WINDHAM...
SOUTHERN WORCESTER...EASTERN HAMPDEN...NORTHWEST PROVIDENCE...AND
WESTERN KENT COUNTIES...

HAZARDS...A snow squall accompanied by winds of up to 30 MPH which
can rapidly reduce visibility to less than one mile.

LOCATION AND MOVEMENT...At 213 PM EST, a snow squall was along a line
extending from near Union to Bolton and moving southeast at 20 MPH.

THIS SQUALL WILL BE NEAR...
  Mansfield, Coventry, Woodstock, Willington, Columbia, Ashford,
  Pomfret, Andover, Chaplin, and Eastford around 220 PM EST.
  Willimantic around 225 PM EST.
  Windham, Thompson, and Hampton around 230 PM EST.
  Putnam around 235 PM EST.
  Scotland around 240 PM EST.
  Killingly and Brooklyn around 245 PM EST.
  Canterbury around 250 PM EST.
  Glocester around 255 PM EST.

SAFETY INFO...
Use extra caution if you must travel into or through this squall.
Rapid changes in visibility and potentially slick roads may lead to
accidents.

&&

LAT...LON 4208 7210 4192 7148 4164 7187 4163 7196
      4166 7216 4171 7224 4169 7227 4167 7227
      4164 7233 4175 7255
TIME...MOT...LOC 1913Z 297DEG 16KT 4200 7210 4178 7240

Belk

Special Weather Statement
National Weather Service Boston/Norton MA
241 PM EST Sat Feb 17 2024

MAZ005>007-014-015-172015-
Eastern Essex-Suffolk-Central Middlesex County-Western
Essex-Southeast Middlesex-
241 PM EST Sat Feb 17 2024

...AN AREA OF HEAVY SNOW WILL AFFECT ESSEX...NORTHEASTERN SUFFOLK AND
NORTHEASTERN MIDDLESEX COUNTIES...

At 240 PM EST, an area of heavy snow was located along a line
extending from near Exeter to Boxford to near Carlisle. Movement was
east at 20 mph.

Locations impacted include...
Lowell, Lynn, Lawrence, Haverhill, Malden, Revere, Peabody, Methuen,
Salem, Billerica, Beverly, Woburn, Chelmsford, Andover, Dracut,
Tewksbury, Gloucester, North Andover, Melrose, and Saugus.

The snow can accumulate at a rate of one inch per hour or more in
this area of heavy snow. Be prepared for hazardous driving
conditions. Consider delaying travel if you will be going through
this area of heavy snow.

Conditions can deteriorate rapidly in winter weather situations. Be
prepared for snow or ice covered roads. Slow down and allow extra
time when traveling.

LAT...LON 4287 7082 4283 7081 4281 7087 4280 7083
      4282 7082 4280 7081 4280 7077 4270 7073
      4272 7062 4264 7055 4240 7093 4256 7144
      4270 7135 4270 7129 4274 7124 4274 7119
      4281 7116 4281 7107 4286 7103 4289 7093
TIME...MOT...LOC 1940Z 283DEG 16KT 4293 7099 4268 7100 4254 7141

BL