Storm Warning 5, NWS Boston/Norton, MA

891 
WHUS71 KBOX 110037
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
737 PM EST Tue Dec 10 2024

ANZ250-111345-
/O.EXA.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
737 PM EST Tue Dec 10 2024

...STORM WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 1 AM EST
THURSDAY...

* WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 
  10 to 15 feet expected.

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

* WHEN...From 4 PM Wednesday to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ255-256-111345-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
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-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 1 AM
EST THURSDAY...

* WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 
  13 to 18 feet expected.

* WHERE...In Massachusetts coastal waters, 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 4 PM Wednesday to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ235-237-111345-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0400Z/
Rhode Island Sound-Block Island Sound-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM TO 11 PM EST
WEDNESDAY...

* WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 
  10 to 15 feet expected.

* WHERE...Rhode Island Sound and Block Island Sound.

* WHEN...From 4 PM to 11 PM EST Wednesday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ233-234-111345-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Vineyard Sound-Buzzards Bay-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 1 AM
EST THURSDAY...

* WHAT...South winds 30 to 40 kt with gusts up to 50 kt and seas 
  6 to 11 feet expected.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...From 4 PM Wednesday to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ231-232-251-111345-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Cape Cod Bay-Nantucket Sound-Massachusetts Bay and Ipswich Bay-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 1 AM
EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 50 kt and seas 
  7 to 10 feet expected.

* WHERE...Cape Cod Bay, Nantucket Sound and Massachusetts Bay 
  and Ipswich Bay.

* WHEN...From 4 PM Wednesday to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ254-111345-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 1 AM
EST THURSDAY...

* WHAT...For the Small Craft Advisory, north winds 5 kt or less 
  and seas 3 to 5 feet. For the Storm Warning, south winds 25 to 
  35 kt with gusts up to 55 kt and seas 10 to 15 feet expected.

* WHERE...Coastal waters from Provincetown MA to Chatham MA to 
  Nantucket MA out 20 nm.

* WHEN...For the Small Craft Advisory, until 4 PM EST this 
  afternoon. For the Storm Warning, from 4 PM Wednesday to 1 AM 
  EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ236-111345-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0400Z/
Narragansett Bay-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM TO 11 PM EST
WEDNESDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 50 kt and 
  waves 6 to 11 feet expected.

* WHERE...Narragansett Bay.

* WHEN...From 4 PM to 11 PM EST Wednesday.

* IMPACTS...Storm force winds and hazardous waves will capsize 
  or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ230-111345-
/O.CON.KBOX.SR.W.0005.241212T0000Z-241212T0600Z/
Boston Harbor-
737 PM EST Tue Dec 10 2024

...STORM WARNING REMAINS IN EFFECT FROM 7 PM WEDNESDAY TO 1 AM
EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 50 kt and 
  waves around 2 feet expected.

* WHERE...Boston Harbor.

* WHEN...From 7 PM Wednesday to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous waves will capsize 
  or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

037 
WHUS71 KBOX 110707
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
207 AM EST Wed Dec 11 2024

ANZ255-256-112015-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
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-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
1 AM EST THURSDAY...

* WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 
  14 to 19 feet expected.

* WHERE...In Massachusetts coastal waters, 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 4 PM this afternoon to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ235-237-112015-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0400Z/
Rhode Island Sound-Block Island Sound-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
11 PM EST THIS EVENING...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  9 to 14 feet expected.

* WHERE...Rhode Island Sound and Block Island Sound.

* WHEN...From 4 PM this afternoon to 11 PM EST this evening.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ233-234-112015-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Vineyard Sound-Buzzards Bay-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
1 AM EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  6 to 9 feet expected.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...From 4 PM this afternoon to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ231-232-251-112015-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Cape Cod Bay-Nantucket Sound-Massachusetts Bay and Ipswich Bay-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
1 AM EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  6 to 9 feet expected.

* WHERE...Cape Cod Bay, Nantucket Sound and Massachusetts Bay 
  and Ipswich Bay.

* WHEN...From 4 PM this afternoon to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ250-254-112015-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
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-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
1 AM EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  11 to 16 feet expected.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary and Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm.

* WHEN...From 4 PM this afternoon to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ236-112015-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0400Z/
Narragansett Bay-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
11 PM EST THIS EVENING...

* WHAT...South winds 20 to 30 kt with gusts up to 50 kt and 
  waves 6 to 9 feet expected.

* WHERE...Narragansett Bay.

* WHEN...From 4 PM this afternoon to 11 PM EST this evening.

* IMPACTS...Storm force winds and hazardous waves will capsize 
  or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ230-112015-
/O.CON.KBOX.SR.W.0005.241212T0000Z-241212T0600Z/
Boston Harbor-
207 AM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 AM
EST THURSDAY...

* WHAT...South winds 20 to 30 kt with gusts up to 50 kt and 
  waves around 2 feet expected.

* WHERE...Boston Harbor.

* WHEN...From 7 PM this evening to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous waves will capsize 
  or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

Frank

265 
WHUS71 KBOX 111948
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
248 PM EST Wed Dec 11 2024

ANZ255-256-120600-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
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-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST THURSDAY...

* WHAT...South winds 30 to 40 kt with gusts up to 55 kt and seas 
  14 to 19 feet expected.

* WHERE...In Massachusetts coastal waters, 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 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ235-237-120400-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0400Z/
Rhode Island Sound-Block Island Sound-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  9 to 14 feet expected.

* WHERE...Rhode Island Sound and Block Island Sound.

* WHEN...Until 11 PM EST this evening.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ233-234-120600-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Vineyard Sound-Buzzards Bay-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  6 to 9 feet expected.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...Until 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ231-232-251-120600-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
Cape Cod Bay-Nantucket Sound-Massachusetts Bay and Ipswich Bay-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  6 to 9 feet expected.

* WHERE...Cape Cod Bay, Nantucket Sound and Massachusetts Bay 
  and Ipswich Bay.

* WHEN...Until 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ250-254-120600-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0600Z/
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-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST THURSDAY...

* WHAT...South winds 25 to 35 kt with gusts up to 55 kt and seas 
  11 to 16 feet expected.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary and Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm.

* WHEN...Until 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous seas will capsize or 
  damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ236-120400-
/O.CON.KBOX.SR.W.0005.241211T2100Z-241212T0400Z/
Narragansett Bay-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING...

* WHAT...South winds 25 to 30 kt with gusts up to 50 kt and 
  waves 6 to 9 feet expected.

* WHERE...Narragansett Bay.

* WHEN...Until 11 PM EST this evening.

* IMPACTS...Storm force winds and hazardous waves will capsize 
  or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

ANZ230-120600-
/O.CON.KBOX.SR.W.0005.241212T0000Z-241212T0600Z/
Boston Harbor-
248 PM EST Wed Dec 11 2024

...STORM WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 AM
EST THURSDAY...

* WHAT...South winds 20 to 30 kt with gusts up to 50 kt and 
  waves around 2 feet expected.

* WHERE...Boston Harbor.

* WHEN...From 7 PM this evening to 1 AM EST Thursday.

* IMPACTS...Storm force winds and hazardous waves will capsize 
  or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

$$

918 
WHUS71 KBOX 120342
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1042 PM EST Wed Dec 11 2024

ANZ230-121200-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0600Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T1200Z/
Boston Harbor-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 7 AM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...Southwest winds 15 to 25 kt with gusts up to 35 kt and 
  waves around 2 feet.

* WHERE...Boston Harbor.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous waves 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 hazardous conditions.

&&

$$

ANZ231-251-121200-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0600Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T1200Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 7 AM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...Southwest winds 25 to 35 kt with gusts up to 47 kt and 
  seas 5 to 8 feet.

* WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay.

* WHEN...Until 7 AM EST Thursday.

* 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 hazardous conditions.

&&

$$

ANZ232>234-121645-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0600Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T2200Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 5 PM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...West winds 30 to 40 kt with gusts up to 47 kt and seas 7
  to 10 feet.

* WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay.

* WHEN...Until 5 PM EST Thursday.

* 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 hazardous conditions.

&&

$$

ANZ235-237-121645-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0400Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T2200Z/
Rhode Island Sound-Block Island Sound-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 5 PM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...West winds 25 to 35 kt with gusts up to 47 kt and seas 7
  to 12 feet.

* WHERE...Rhode Island Sound and Block Island Sound.

* WHEN...Until 5 PM EST Thursday.

* 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 hazardous conditions.

&&

$$

ANZ236-121200-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0400Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T1200Z/
Narragansett Bay-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 7 AM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...West winds 15 to 25 kt with gusts up to 40 kt and waves 
  4 to 7 feet.

* WHERE...Narragansett Bay.

* WHEN...Until 7 AM EST Thursday.

* IMPACTS...Strong winds will cause hazardous waves 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 hazardous conditions.

&&

$$

ANZ250-254-121500-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0600Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T1500Z/
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-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 10 AM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...Southwest winds 30 to 40 kt with gusts up to 47 kt and 
  seas 11 to 16 feet.

* WHERE...Coastal waters east of Ipswich Bay and the Stellwagen 
  Bank National Marine Sanctuary and Coastal waters from 
  Provincetown MA to Chatham MA to Nantucket MA out 20 nm.

* WHEN...Until 10 AM EST Thursday.

* 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 hazardous conditions.

&&

$$

ANZ255-256-121645-
/O.CAN.KBOX.SR.W.0005.000000T0000Z-241212T0600Z/
/O.NEW.KBOX.GL.W.0032.241212T0342Z-241212T2200Z/
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-
1042 PM EST Wed Dec 11 2024

...GALE WARNING IN EFFECT UNTIL 5 PM EST THURSDAY...
...STORM WARNING IS CANCELLED...

* WHAT...West winds 30 to 40 kt with gusts up to 47 kt and seas 
  14 to 19 feet.

* WHERE...In Massachusetts coastal waters, 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 5 PM EST Thursday.

* 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 hazardous conditions.

&&

$$

Area Forecast Discussion
National Weather Service Boston/Norton MA
1045 AM EST Tue Dec 10 2024

.SYNOPSIS...
Cloudy and raw today with patchy drizzle and even some freezing
drizzle/black ice this morning across north central and
northeast Massachusetts. Some showers begin to overspread the
region later tonight with periods of windswept heavy rain
Wednesday into Wednesday night ahead of a strong cold front.
Strong to damaging wind gusts may develop ahead of this cold
front along with the risk for some River and Urban flooding
Wednesday into Wednesday night. Below normal temperatures and
dry conditions Thursday through the first half of the weekend.
The next chance for precipitation comes Sunday into early next
week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

* Areas of freezing drizzle/black ice central & northeast MA
* Raw & Chilly today with patchy drizzle & temps mainly
  30s/lower 40s

Main focus for the morning update was for surface temperatures.
Thought the latest 3km NAM had the best handle on trends when
compared to observations. Thus, the risk for some patchy
freezing drizzle likely continues across portions of northeast
and central MA into this afternoon. Otherwise, generally cloudy
and dreary the rest of today. Did also tweak timing of rainfall
chances into this evening incorporating the latest guidance.

Previous Discussion...

The main concern into the morning commute is for freezing
drizzle/black ice formation especially in central and northeast
MA. A meso-low that was lifting northeast and away from the
region. This is a classic setup...where high resolution 2 meter
temps from the HRRR/NAM will do better than most other guidance
sources in showing this push of shallow cold air down the
coastal plain. Primary area of concern is in the Worcester...to
Bedford...to Lawrence area. We issued an SPS to highlight the
concern for freezing drizzle/black ice into the morning commute
for central and northeast MA where we do not have the Winter
Weather Advisory. We also continued the Winter Weather Advisory
for the Berks and north central MA this morning for freezing
drizzle/black ice this morning. We will have to watch if some
light freezing drizzle may linger into the afternoon...but that
will be more of a nowcast situation.

Otherwise, cloudy skies and patchy drizzle will be the main
story today. While there is not much forcing for any synoptic
precipitation, light NNE low level flow and an abundance of
moisture will result in clouds skies with patchy drizzle today.
Given pattern recognition...we followed a blend of the colder
high resolution 2 meter temps from a blend of the NAM/HREF/HRRR
which tends to handle shallow cold air much better. Therefore,
thinking temps today will be mainly in the 30s to the lower 40s
today. In fact...portions of north central & northeast MA will
struggle to get much over the freezing point. Cape and Islands
will be the mild spots with temps well into the 40s.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/...
Key Messages...

* Showers increase in areal coverage later tonight

* Periods of rain will be heavy at times Wed into Wed night with
  a few embedded t-storms possible too

* Some Mainstem River and Urban Flooding is possible

* Strong-Damaging Wind Gusts of 50-60 mph possible late Wed/Wed
  night

* Temperatures surge to near 60+ later Wed/Wed evening

Details...

Quite the dynamic storm system will be impacting the region.
This will bring the potential for strong to damaging wind
gusts along with heavy rain and flooding. We will break it down
below.

Heavy Rain & Flood Risk...

A strong shortwave carving out a deep trough over the midwest
will allow deep meridional flow to develop across New England.
An initial shortwave will allow for modest warm
advection/forcing to commence later tonight. This will increase
the forcing for ascent and allow for some showers to develop,
with the focus for them later tonight into the overnight hours.
Lingering shallow cold air will bring the risk for a brief
period of light icing mainly across interior northern MA, but
it should not last too long.

Digging shortwave energy will continue to allow for a
strengthening powerful southerly LLJ Wed into Wed evening ahead
of a strong cold front. Pwats on the order of 1.50 inches
coupled with a southerly LLJ of 70 to 90+ knots will develop at
850 mb. This combination will set the stage for periods heavy
rain Wed into Wed evening. This looks to come into two main
rounds, the first occurring during the morning hours with the
warm front. The second round looks to occur later Wed into Wed
evening with the approaching cold front. Some elevated
instability coupled with strong forcing may allow for a few
embedded t-storms. In fact...SPC has a marginal risk for
portions of our region.

All these ingredients should result in widespread rainfall
totals of 2-3 inches with localized 4 inch amounts possible. In
addition, snowmelt from northern New England might lead to the
risk of some Mainstem River Flooding. The MMEFS guidance from
the NAEFS/GEFS shows the potential for some mainstem rivers
focused in western MA/northern CT to potentially go into flood
especially the tributaries of the CT River. Therefore, have
opted to include a Flood Watch for western MA and portions of
northern CT. There also will be the risk for some urban flooding
too. Later shifts may have to consider an expansion further east
depending on how things look with later model runs.

Strong to Damaging Winds Later Wed into Wed night...

A very powerful southerly LLJ will develop later Wed into Wed
night ahead of a vigorous upper trough. The guidance is depicting
80-90+ knots of wind at 850 mb sweeping across the region. In
these setups...it is always quite a challenge to depict how much
of this wind is able to mix down. A lot of it will be based on
how mild we can get allowing the inversion to weaken. Odds in
strong to damaging winds will increase if we are able to develop
some sort of fine line. We do think that most of our region
will eventually warm sector later Wed into Wed night...but take
the longest in the CT River Valley and portions of the interior
based on high resolution 2 meter temps. However...much of the
guidance indicates that temps will surge to near or even just
above 60 degrees! We opted to expand the High Wind Watch across
the rest of eastern MA & RI for 50 to 60 mph wind gusts. Later
shifts can decide on whether to upgrade to a High Wind Warning
or go with a Wind Advisory based on trends. The heavy rain may
exacerbate the risk for tree damage and power outages. We also
may need to extend Wind Advisories well back into the interior
given a period of good mixing in the warm sector. In fact...even
a low risk portions of the interior may flirt with high wind
criteria especially if any convective elements get involved.

Coastal Flooding...

We do not expect coastal flooding to be much of an issue with
this storm. Strong southerly wind gusts would make the south
coast most vulnerable...but appears high tide will occur before
the peak winds arrive Wed evening. So other than perhaps some
splashover...the risk for any appreciable coastal flooding
appears low at this time.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
Key Messages:

* Below normal temperatures favored Thursday through Saturday

* Dry conditions through the first half of weekend. Next chance
  for precipitation Sun-Mon

Behind the previous system, cold air advects across the region
promoting cooler temperatures on Thursday. This will keep highs
around High pressure slowly builds in keeping conditions dry.
or just below normal in the upper 30s to low 40s. Windy
conditions will also accompany the post-frontal regime; however,
not as strong as Wednesday with gusts 20-30 mph.

High pressure building in will continue to diminish cloud cover.
This in combination with the deeper cold air shifting over the
region with owe to a chillier night Thurs night. Temperatures
drop into the upper teens to low 20s across the interior with
mid teens across the higher elevation spots. Coastal areas range
in the low to mid 20s.

Ensembles show the coolest/anomalous 850mb temperatures shifted
over the northeast by Friday bringing likely the coolest day of
the week. Highs will likely be below normal for this time of
year in the 30s. Temperatures slowly begin to moderate starting
Saturday and more Sunday as the cooler airmass shifts to the
northeast. Temperatures may still range slightly below normal
Saturday with higher closer to normal Sunday.

The next chance for precipitation comes Sunday into early next
week. Ensemble guidance signals increased precipitation chances
in this timeframe associated with the passage of a shortwave
trough (or two) in the flow aloft accompanied by a plume of
anomalous moisture. If you dive more into the details, there
is still quite a bit of spread among individual model/ensemble
solutions with respect to the trough(s) and how it progresses
across the region. With that said, there is still uncertainty in
the timing and timeframe of best precip chances at this time.

&&

.AVIATION /16Z TUESDAY THROUGH SATURDAY/...
Forecast Confidence Levels:

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

Today... High Confidence.

LIFR/IFR conditions dominate with patchy drizzle into this
afternoon. Latest observations continue to suggest the risk for
freezing drizzle across portions of central and northeast MA.

Tonight...High Confidence

IFR/LIFR ceilings persist with the next batch of rainfall
spreading across the region after 00z. Winds shift to the
south/southeast and gradually increase to 10 knots with 10 to 15
knots over The Cape Islands. Some gusts to 20 knots develop over
the south coast/Cape/Islands by 12Z.

Wednesday Night: MVFR/IFR conditions possible. Strong winds
with gusts up to 50 kt. RA, isolated TSRA, patchy BR.

KBOS Terminal...Moderate Confidence. Low risk for some spotty
freezing drizzle through about 18z with temperatures near 32F.
Marginal risk at Logan, with a greater concern just to the
northwest.

KBDL Terminal...High Confidence.

Outlook /Thursday through Saturday/...

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

Thursday Night through Friday: VFR. Breezy.

Friday Night through Saturday: VFR.

&&

.MARINE...
Forecaster Confidence Levels:

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

* Storm Watch Wed into Wed night with potential of 45-50+ knot
  winds along with 10-15+ foot seas for Mariners

Today...High Confidence.

NE winds of 5 to 15 knots are on tap for today as a weak low
pressure pulls away from the region. We continued Small Craft
Advisories for our eastern outer-waters for lingering 5 foot
swell.

Tonight...

Approaching upper trough will induce a developing southerly LLJ.
This will result in SE winds strengthening to between 15 and 20
knots as the night wears along with some gusts to 25 knots by
daybreak.

Wednesday and Wednesday night...

A powerful southerly LLJ of 90+ knots will overspread the region
later Wed into Wed night. While it is uncertain how much of this
wind will mix down, there certainly is the potential for 45-50+
knots especially in any convective elements. Storm Watches
continue with seas expected to build to 10-15+ feet.

Outlook /Thursday through Saturday/...

Thursday: Strong winds with local gusts up to 30 kt. Rough seas
up to 14 ft. Slight chance of rain.

Thursday Night: Moderate risk for Small Craft Advisory winds
with gusts up to 25 kt. Rough seas up to 11 ft.

Friday: Winds less than 25 kt. Areas of seas approaching 5 ft.

Friday Night through Saturday: Winds less than 25 kt.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Flood Watch from Wednesday afternoon through Thursday morning
     for CTZ002-003.
MA...Flood Watch from Wednesday afternoon through Thursday morning
     for MAZ002-003-008>011.
     High Wind Watch from Wednesday afternoon through late
     Wednesday night for MAZ005>007-013>024.
RI...High Wind Watch from Wednesday afternoon through late
     Wednesday night for RIZ001>008.
MARINE...Storm Watch from Wednesday afternoon through late Wednesday
     night for ANZ230-233-234-255-256.
     Storm Watch from Wednesday afternoon through late Wednesday
     night for ANZ231-232-250-251-254.
     Storm Watch from Wednesday afternoon through Wednesday evening
     for ANZ235>237.
     Small Craft Advisory until 7 PM EST this evening for ANZ250.
     Small Craft Advisory until 4 PM EST this afternoon for ANZ254.

&&

SYNOPSIS...Frank/Mensch
NEAR TERM...Belk/Frank
SHORT TERM...Frank
LONG TERM...Mensch
AVIATION...Belk/Frank/Mensch
MARINE...Frank/Mensch

Special Weather Statement
National Weather Service Boston/Norton MA
1108 AM EST Tue Dec 10 2024

MAZ004>007-012-014-015-026-110000-
Northern Worcester MA-Central Middlesex MA-Western Essex MA-
Eastern Essex MA-Southern Worcester MA-Southeast Middlesex MA-
Suffolk MA-Northern Middlesex MA-
Including the cities of Barre, Fitchburg, Framingham, Lowell,
Lawrence, Gloucester, Milford, Worcester, Cambridge, Boston,
and Ayer
1108 AM EST Tue Dec 10 2024

...POCKETS OF FREEZING DRIZZLE AND BLACK IN PORTIONS OF CENTRAL
AND NORTHEAST MASSACHUSETTS...

Temperatures remain near or just below the freezing point this
morning. This may continue to support pockets of freezing drizzle
and black ice across central and northeast Massachusetts through
the evening commute. Motorists should take it slow and roads that
may looks wet might be icy...especially bridges and overpasses.