Gale Warning 16, NWS Boston/Norton, MA

007 
WHUS71 KBOX 170732
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
332 AM EDT Mon Mar 17 2025

ANZ256-171700-
/O.EXT.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
332 AM EDT Mon Mar 17 2025

...GALE WARNING NOW IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and seas 
  8 to 11 feet.

* WHERE...Coastal Waters from Montauk NY to Marthas Vineyard 
  extending out to 20 nm South of Block Island.

* WHEN...Until 1 PM EDT this afternoon.

* 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.

&&

$$

ANZ254-255-171700-
/O.EXT.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
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-
332 AM EDT Mon Mar 17 2025

...GALE WARNING NOW IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and seas 
  7 to 10 feet.

* WHERE...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.

* WHEN...Until 1 PM EDT this afternoon.

* 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.

&&

$$

ANZ233-234-171500-
/O.EXT.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
Vineyard Sound-Buzzards Bay-
332 AM EDT Mon Mar 17 2025

...GALE WARNING NOW IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and seas 
  4 to 6 feet.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$

ANZ235-237-171200-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
Rhode Island Sound-Block Island Sound-
332 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and seas 
  6 to 8 feet.

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

* WHEN...Until 8 AM EDT this morning.

* 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.

&&

$$

ANZ232-171500-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
Nantucket Sound-
332 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...South winds 25 to 30 kt with gusts up to 35 kt and seas 
  4 to 6 feet.

* WHERE...Nantucket Sound.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$

ANZ236-171200-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
Narragansett Bay-
332 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* WHAT...South winds 20 to 25 kt with gusts up to 35 kt and 
  waves 4 to 6 feet.

* WHERE...Narragansett Bay.

* WHEN...Until 8 AM EDT this morning.

* 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.

&&

$$

ANZ231-171500-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
Cape Cod Bay-
332 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...South winds 20 to 25 kt with gusts up to 35 kt and seas 
  3 to 5 feet.

* WHERE...Cape Cod Bay.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$

ANZ251-171200-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
Massachusetts Bay and Ipswich Bay-
332 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* WHAT...South winds 20 to 25 kt with gusts up to 35 kt and seas 
  3 to 5 feet.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...Until 8 AM EDT this morning.

* 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.

&&

$$

ANZ250-171200-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
332 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* WHAT...South winds 20 to 25 kt with gusts up to 35 kt and seas 
  5 to 7 feet.

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

* WHEN...Until 8 AM EDT this morning.

* 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.

&&

$$

ANZ230-171200-
/O.EXT.KBOX.SC.Y.0037.000000T0000Z-250317T1200Z/
Boston Harbor-
332 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT THIS
MORNING...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and 
  waves around 2 feet.

* WHERE...Boston Harbor.

* WHEN...Until 8 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

536 
WHUS71 KBOX 171157
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
757 AM EDT Mon Mar 17 2025

ANZ231-171500-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
/O.NEW.KBOX.GL.W.0017.250317T1200Z-250317T1500Z/
Cape Cod Bay-
757 AM EDT Mon Mar 17 2025

...GALE WARNING IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...South winds 20 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 feet expected.

* WHERE...Cape Cod Bay.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$

ANZ235-237-180100-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
/O.EXB.KBOX.SC.Y.0037.250317T1200Z-250319T0000Z/
Rhode Island Sound-Block Island Sound-
757 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT TUESDAY...
...GALE WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  5 to 8 feet expected.

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

* WHEN...Until 8 PM EDT Tuesday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ236-171500-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
/O.EXB.KBOX.SC.Y.0037.250317T1200Z-250317T1500Z/
Narragansett Bay-
757 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...
...GALE WARNING IS CANCELLED...

* WHAT...South winds 15 to 20 kt with gusts up to 30 kt and 
  waves 4 to 6 feet expected.

* WHERE...Narragansett Bay.

* WHEN...Until 11 AM EDT this morning.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ251-171700-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
/O.EXB.KBOX.SC.Y.0037.250317T1200Z-250317T1700Z/
Massachusetts Bay and Ipswich Bay-
757 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...
...GALE WARNING IS CANCELLED...

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

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...Until 1 PM EDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-180100-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1200Z/
/O.EXB.KBOX.SC.Y.0037.250317T1200Z-250319T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
757 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT TUESDAY...
...GALE WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  4 to 7 feet expected.

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

* WHEN...Until 8 PM EDT Tuesday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ230-171300-
/O.EXP.KBOX.SC.Y.0037.000000T0000Z-250317T1200Z/
Boston Harbor-
757 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY WILL EXPIRE AT 8 AM EDT THIS MORNING...

$$

ANZ256-171700-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
757 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and seas 
  9 to 11 feet.

* WHERE...Coastal Waters from Montauk NY to Marthas Vineyard 
  extending out to 20 nm South of Block Island.

* WHEN...Until 1 PM EDT this afternoon.

* 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.

&&

$$

ANZ254-255-171700-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
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-
757 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

* WHAT...South winds 20 to 30 kt with gusts up to 35 kt and seas 
  7 to 10 feet.

* WHERE...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.

* WHEN...Until 1 PM EDT this afternoon.

* 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.

&&

$$

ANZ233-234-171500-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
Vineyard Sound-Buzzards Bay-
757 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...South winds 20 to 30 kt and seas 4 to 6 feet.

* WHERE...Vineyard Sound and Buzzards Bay.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$

ANZ232-171500-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
Nantucket Sound-
757 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING...

* WHAT...South winds 25 to 30 kt with gusts up to 35 kt and seas 
  4 to 6 feet.

* WHERE...Nantucket Sound.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$

872 
WHUS71 KBOX 171435
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1035 AM EDT Mon Mar 17 2025

ANZ231-180345-
/O.CAN.KBOX.GL.W.0017.000000T0000Z-250317T1500Z/
/O.EXB.KBOX.SC.Y.0037.000000T0000Z-250318T1800Z/
Cape Cod Bay-
1035 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT TUESDAY...
...GALE WARNING IS CANCELLED...

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

* WHERE...Cape Cod Bay.

* WHEN...Until 2 PM EDT Tuesday.

* 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>234-180345-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1500Z/
/O.EXB.KBOX.SC.Y.0037.000000T0000Z-250318T1800Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-
1035 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT TUESDAY...
...GALE WARNING IS CANCELLED...

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

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

* WHEN...Until 2 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ236-171545-
/O.EXP.KBOX.SC.Y.0037.000000T0000Z-250317T1500Z/
Narragansett Bay-
1035 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY WILL EXPIRE AT 11 AM EDT THIS MORNING...

$$

ANZ256-171700-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1035 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 
  9 to 11 feet.

* WHERE...Coastal Waters from Montauk NY to Marthas Vineyard 
  extending out to 20 nm South of Block Island.

* WHEN...Until 1 PM EDT this afternoon.

* 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.

&&

$$

ANZ254-255-171700-
/O.CON.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
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-
1035 AM EDT Mon Mar 17 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 1 PM EDT THIS AFTERNOON...

* WHAT...South winds 20 to 30 kt and seas 7 to 10 feet.

* WHERE...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.

* WHEN...Until 1 PM EDT this afternoon.

* 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.

&&

$$

ANZ235-237-180345-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-250319T0000Z/
Rhode Island Sound-Block Island Sound-
1035 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
TUESDAY...

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

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

* WHEN...Until 8 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ251-171700-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-250317T1700Z/
Massachusetts Bay and Ipswich Bay-
1035 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EDT THIS
AFTERNOON...

* WHAT...South winds 15 to 20 kt with gusts up to 25 kt and seas 
  3 to 5 feet.

* WHERE...Massachusetts Bay and Ipswich Bay.

* WHEN...Until 1 PM EDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-180345-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-250319T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1035 AM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  4 to 7 feet.

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

* WHEN...Until 8 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

492 
WHUS71 KBOX 171649
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1249 PM EDT Mon Mar 17 2025

ANZ254>256-180600-
/O.CAN.KBOX.GL.W.0016.000000T0000Z-250317T1700Z/
/O.EXA.KBOX.SC.Y.0037.000000T0000Z-250319T0000Z/
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-
1249 PM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT TUESDAY...
...GALE WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  6 to 11 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 8 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ251-171800-
/O.EXP.KBOX.SC.Y.0037.000000T0000Z-250317T1700Z/
Massachusetts Bay and Ipswich Bay-
1249 PM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY WILL EXPIRE AT 1 PM EDT THIS AFTERNOON...


$$

ANZ235-237-180600-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-250319T0000Z/
Rhode Island Sound-Block Island Sound-
1249 PM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
TUESDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 
  5 to 8 feet.

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

* WHEN...Until 8 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ231>234-180600-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-250318T1800Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
1249 PM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT
TUESDAY...

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

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

* WHEN...Until 2 PM EDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-180600-
/O.CON.KBOX.SC.Y.0037.000000T0000Z-250319T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1249 PM EDT Mon Mar 17 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  4 to 7 feet.

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

* WHEN...Until 8 PM EDT Tuesday.

* 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
139 PM EDT Sun Mar 16 2025

.SYNOPSIS...
A strong cold front will bring the potential for heavy rain and
strong southerly wind gusts tonight into Monday morning. Mainly
dry and mild weather returns Tuesday into Thursday. Another
approaching cold front will likely bring a period of showers
sometime late Thursday into Thursday night, followed by blustery
and cooler conditions next Friday.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
945 AM update...

Widespread stratus and areas of fog across SNE this morning.
Fog expected to lift through midday as south winds increase, but
stratus will be tough to completely erode with abundant low
level moisture in place. Expect cigs lifting this afternoon,
except along the south coast where low stratus likely to
persist. Patchy drizzle this morning, otherwise much of the day
should be dry as deeper moisture remains to the west. Exception
will be across western MA/CT where a few showers are possible
this afternoon. Increasing south winds this afternoon with gusts
25-35 mph developing, perhaps a gust to 40 mph over the higher
terrain. Rather shallow mixed layer this afternoon but 950 mb
temps pretty mild around 11-12C. This should translate to highs
in the low-mid 60s away from the south coast, with some upper
60s possible across interior NE MA. Cooler upper 50s along the
immediate south coast.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/...
Widespread rainfall arrives tonight. A secondary low pressure is
projected to develop along this front Monday, slowing its
eastward progress. This will extend the time for rainfall.
Anticipating a widespread 1.0-1.5 inches of rainfall when all
is done. HREF LPMM QPF shoed potential for a band of heavier
rainfall of 2.0-2.5 inches of rainfall. This heavier rainfall is
most likely across portions of eastern CT, across RI into
portions of southeast MA.

Above normal temperatures continue.

&&

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
Key Messages:

* Mild start to the week

* Next system approaches sometime Thursday night into Friday
  morning

* Colder going into the weekend

Details...

The rest of the rain continues to exit the region going into
Tuesday morning. Once it passes, the majority of the associated
cloud cover should begin to break up a bit from west to east as
Tuesday goes on. Winds shift more to the north, but there is
still a decent chance that temperatures reach 55F towards the
interior. Warmer temperatures aloft (close to +10C at 850 mb)
from ridging will encourage these mild temperatures for midweek.
High pressure keeps the region dry for the rest of Tuesday into
midweek. Easterly to northeasterly flow returns for Wednesday,
which may contribute to more clouds and will keep the eastern
coastline of MA cooler than the interior. South to SE flow
Thursday will also advect more moisture from over the Atlantic.

Another trough is expected to dig into the central US and move
northeast into the Great Lakes region. Its surface low is
expected to continue its northeast trajectory into Canada while
its cold front extends south into the US. Guidance is also
hinting at the development of a secondary low along its cold
front over the mid- Atlantic which will be something to monitor.
With moisture being advected in Thursday, ensemble guidance
indicates slightly above normal PWAT values out ahead of this
front across southern New England for Thursday night, only about
a standard deviation above normal at most. With the lift
provided from the cold front's passage, the development of rain
showers just ahead of the front is possible Thursday night into
Friday. As this front passes, winds during the day Friday will
increase and shift to the NW. Breezy NW winds and cooler
temperatures aloft will keep much of the region in the 40s for
Friday. Drier and colder post-frontal air Friday night may bring
overnight lows down to the upper 20s.

&&

.AVIATION /17Z SUNDAY THROUGH THURSDAY/...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Rest of Today...Moderate confidence.

CIGS have lifted into the MVFR to even VFR range for much of the
region as temps warmed higher then expected allowing the
saturated low level air to dry out. Increasing southerly winds
this afternoon gusting 20-30 knots. LLWS increases through the
afternoon as a southerly LLJ brings 2kft winds to 50-60 knots.

Tonight...Moderate confidence.

CIGS drop back to low end MVFR to IFR tonight with IFR/LIFR for
the Cape and Islands. Rain moves in from west to east between
02-06z, starting light, becoming moderate to heavy between
06-15z. Gusty southerly winds at 20-30 knots continue along
with the 50-60 knot LLJ at 2kft.

Monday...Low Confidence.

Guidance is slow to clear the rain off the east coast with
showers possibly lingering for eastern terminals into Monday
evening. CIGS should remain IFR until winds turn more westerly,
but guidance may be a bit to slow on improving CIGS behind the
wind shift.

Monday Night...Moderate Confidence.

CIGS should improve to VFR across the interior if they have not
already by Monday afternoon. Eastern terminals, esspically the
Cape and Islands may see lingering MVFR/IFR CIGS. Winds begin to
shift north at 10-20 knots.

KBOS TAF...Moderate confidence in TAF.

MVFR expected the remainder of the afternoon with pockets of VFR
possible. CIGS should slowly drop back to low end MVFR/IFR
after sunset. Light rain moves in around 06z, becoming moderate
to heavy between 10-15z. Showers and IFR CIGS could linger into
Monday afternoon, but confidence is low

Increasing winds today from the south gusting 25-30 knots with
LLWS starting this evening as winds above 2kft will be between
45-55 knots.

KBDL TAF...Moderate Confidence in TAF.

MVFR/IFR CIGS for the rest of the afternoon. CIGS turn more IFR
as rain moves in this evening after 02z. Rain will become heavy
between 07-12z. Rain and IFR CIGS linger into late morning to
early Monday afternoon before improving to MVFR/VFR late Monday
afternoon.

Outlook /Monday Night through Thursday/...

Tuesday: Mainly VFR, with local MVFR possible. Breezy.

Tuesday Night: VFR.

Wednesday: Mainly VFR, with local IFR possible.

Wednesday Night: Mainly VFR, with areas IFR possible.

Thursday: Mainly VFR, with areas IFR possible. Breezy. Chance
RA.

&&

.MARINE...
Forecaster Confidence Levels:

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

Through Monday...High confidence.

Increasing south winds today persist into Monday. Do not have
confidence there will be enough mixing over the waters to
generate consistent gale-force gusts. Converted the Gale Watch
to strong Small Craft Advisories as a result. However, a few
gusts up to 35 kt are not impossible. A cold front should reach
the waters Monday morning, then move across the waters the rest
of the day.

Outlook /Monday Night through Thursday/...

Monday Night: Winds less than 25 kt. Rough seas up to 12 ft.
Rain. Local visibility 1 to 3 nm.

Tuesday: Winds less than 25 kt. Rough seas up to 10 ft. Slight
chance of rain.

Tuesday Night: Winds less than 25 kt. Areas of rough seas.

Wednesday through Wednesday Night: Winds less than 25 kt. Seas
up to 5 ft.

Thursday: Winds less than 25 kt. Areas of rough seas. Slight
chance of rain.

&&

.HYDROLOGY...
Downpours are expected to develop tonight into Monday across
southern New England, with latest forecast between 1-1.25" in
northern MA, and around 1.25-1.5 inches for most of interior
southern New England, with the greatest rainfall totals of 1.75
to up to 2.5" across eastern CT, RI and southeast MA including
Cape Cod and the Islands. While forecast confidence in the
rainfall placement is moderate to high, rainfall totals are only
moderate confidence. There is potential for locally higher
totals if we experience a greater coverage of embedded
convection, or if the frontal boundary moves more slowly that
currently expected.

Widespread significant flooding is not expected and the rain
overall should prove beneficial in light of our spell of recent
dry weather. However, urban and poor drainage nuisance flooding
could develop, especially in some of the more urbanized areas
across eastern RI and southeast MA (including but not limited to
the Providence/Fall River/New Bedford metro areas). Could have
some difficult travel in downpours for the Monday morning
commute, especially across eastern MA and RI.

On rivers, we should see some response on the flashier urban
creeks/streams in CT, RI and eastern MA Sunday night into
Monday. While these will need to be monitored, unless we see
more rainfall than currently anticipated, it's unlikely these
will rise to flood stage. However, we want to mention that in
response to the combination of rain Sun/Mon and upriver snowmelt
moving down the CT River, MMEFS probabilistic guidance indicates
a few of the CT river forecast points (Northhampton,
Thompsonville, Hartford) have the potential to reach into minor
flood stage around Tuesday and/or Wednesday. These will also be
monitored closely over the coming days.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 6 AM EDT Monday for ANZ230.
     Small Craft Advisory until 4 PM EDT Monday for ANZ231-251.
     Small Craft Advisory until 8 PM EDT Monday for ANZ232>237.
     Small Craft Advisory until 8 PM EDT Monday for ANZ250-254>256.

&&

SYNOPSIS...Belk/Hrencecin
NEAR TERM...Belk/KJC
SHORT TERM...Belk
LONG TERM...Hrencecin
AVIATION...KP
MARINE...Belk/Hrencecin
HYDROLOGY...Belk/Loconto/FT