Alert archive / Massachusetts / Small Craft Advisories in 2021

Small Craft Advisory 16, NWS Boston/Norton, MA

February 11, 2021

NWS Boston/Norton, MA issued this small craft advisory at Feb 11, 2021, 2:52 AM EST. It took effect at Feb 11, 2021, 4:07 PM EST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2021, 2:52 AM EST (07:52 UTC)
In effect from
Feb 11, 2021, 4:07 PM EST
Expired
Feb 12, 2021, 1:00 PM EST
In force
21 hr
Issued by
NWS Boston/Norton, MA

The text

As transmitted.

834 
WHUS71 KBOX 110752
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
252 AM EST Thu Feb 11 2021

ANZ250-111800-
/O.NEW.KBOX.SC.Y.0016.210212T0000Z-210212T1300Z/
/O.NEW.KBOX.UP.Y.0005.210212T0400Z-210212T1300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
252 AM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 8 AM
EST FRIDAY...
...FREEZING SPRAY ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 20 to 25 
  kt with gusts up to 30 kt and seas 4 to 6 feet expected. For 
  the Freezing Spray Advisory, light accumulation of freezing 
  spray expected.

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

* WHEN...For the Small Craft Advisory, from 7 PM this evening to 
  8 AM EST Friday. For the Freezing Spray Advisory, from 11 PM 
  this evening to 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous.
  Freezing spray may render mechanical and electronic components
  inoperative. Ice accretion on decks and superstructures may
  result in some loss of stability. Conditions will be hazardous
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ231-251-111800-
/O.NEW.KBOX.SC.Y.0016.210212T0000Z-210212T1300Z/
/O.NEW.KBOX.UP.Y.0005.210212T0400Z-210212T1300Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
252 AM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 8 AM
EST FRIDAY...
...FREEZING SPRAY ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 20 
  kt with gusts up to 25 kt and seas 2 to 4 feet expected. For 
  the Freezing Spray Advisory, light accumulation of freezing 
  spray expected.

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

* WHEN...For the Small Craft Advisory, from 7 PM this evening to 
  8 AM EST Friday. For the Freezing Spray Advisory, from 11 PM 
  this evening to 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ254-111800-
/O.NEW.KBOX.SC.Y.0016.210212T0000Z-210212T1800Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
252 AM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 1 PM
EST FRIDAY...

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

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

* WHEN...From 7 PM this evening to 1 PM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
7 follow-up statements
893 
WHUS71 KBOX 111503
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1003 AM EST Thu Feb 11 2021

ANZ250-112315-
/O.CON.KBOX.SC.Y.0016.210212T0000Z-210212T1300Z/
/O.CON.KBOX.UP.Y.0005.210212T0400Z-210212T1300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 AM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 8 AM EST FRIDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 20 to 25 
  kt with gusts up to 30 kt and seas 4 to 6 feet expected. For 
  the Freezing Spray Advisory, light accumulation of freezing 
  spray expected.

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

* WHEN...For the Small Craft Advisory, from 7 PM this evening to 
  8 AM EST Friday. For the Freezing Spray Advisory, from 11 PM 
  this evening to 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice.

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

&&

$$

ANZ231-251-112315-
/O.CON.KBOX.SC.Y.0016.210212T0000Z-210212T1300Z/
/O.CON.KBOX.UP.Y.0005.210212T0400Z-210212T1300Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1003 AM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 8 AM EST FRIDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT FROM 11 PM THIS
EVENING TO 8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 20 
  kt with gusts up to 25 kt and seas 2 to 4 feet expected. For 
  the Freezing Spray Advisory, light accumulation of freezing 
  spray expected.

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

* WHEN...For the Small Craft Advisory, from 7 PM this evening to 
  8 AM EST Friday. For the Freezing Spray Advisory, from 11 PM 
  this evening to 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice.

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

&&

$$

ANZ254-112315-
/O.CON.KBOX.SC.Y.0016.210212T0000Z-210212T1800Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1003 AM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING
TO 1 PM EST FRIDAY...

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

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

* WHEN...From 7 PM this evening to 1 PM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
097 
WHUS71 KBOX 112107
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
407 PM EST Thu Feb 11 2021

ANZ254-120515-
/O.EXT.KBOX.SC.Y.0016.210211T2107Z-210212T1800Z/
/O.EXB.KBOX.UP.Y.0005.210212T0000Z-210212T1300Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
407 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 1 PM EST FRIDAY...
...FREEZING SPRAY ADVISORY IN EFFECT UNTIL 8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 kt
  with gusts up to 25 kt and seas 4 to 6 feet. For the Freezing
  Spray Advisory, light to moderate accumulation of freezing 
  spray expected.

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

* WHEN...For the Small Craft Advisory, until 1 PM EST Friday. 
  For the Freezing Spray Advisory, until 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ255-120515-
/O.EXB.KBOX.SC.Y.0016.210211T2107Z-210212T1800Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
407 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST FRIDAY...

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

* WHERE...Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket.

* WHEN...Until 1 PM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ232-120515-
/O.EXB.KBOX.SC.Y.0016.210212T0000Z-210212T1200Z/
Nantucket Sound-
407 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 2 to 4 feet expected.

* WHERE...Nantucket Sound.

* WHEN...Until 7 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ231-251-120515-
/O.EXT.KBOX.SC.Y.0016.210211T2107Z-210212T1600Z/
/O.EXT.KBOX.UP.Y.0005.210212T0000Z-210212T1300Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
407 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EST FRIDAY...
...FREEZING SPRAY ADVISORY NOW IN EFFECT UNTIL 8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 kt
  with gusts up to 30 kt and seas 2 to 4 feet. For the Freezing
  Spray Advisory, light to moderate accumulation of freezing 
  spray expected.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST Friday. 
  For the Freezing Spray Advisory, until 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ250-120515-
/O.EXT.KBOX.SC.Y.0016.210211T2107Z-210212T1600Z/
/O.EXT.KBOX.UP.Y.0005.210212T0000Z-210212T1300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
407 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM EST FRIDAY...
...FREEZING SPRAY ADVISORY NOW IN EFFECT UNTIL 8 AM EST FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25 
  kt with gusts up to 30 kt and seas 4 to 6 feet. For the 
  Freezing Spray Advisory, light accumulation of freezing spray 
  expected.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST Friday. 
  For the Freezing Spray Advisory, until 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$
038 
WHUS71 KBOX 120351
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1051 PM EST Thu Feb 11 2021

ANZ231-251-121200-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1051 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST
FRIDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 
  kt with gusts up to 30 kt and seas 2 to 4 feet. For the 
  Freezing Spray Advisory, light to moderate accumulation of 
  freezing spray expected.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST Friday. 
  For the Freezing Spray Advisory, until 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ250-121200-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1051 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST
FRIDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25 
  kt with gusts up to 30 kt and seas 4 to 6 feet. For the 
  Freezing Spray Advisory, light accumulation of freezing spray 
  expected.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST Friday. 
  For the Freezing Spray Advisory, until 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ254-121200-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1051 PM EST Thu Feb 11 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST FRIDAY...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST
FRIDAY...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 
  kt with gusts up to 25 kt and seas 4 to 6 feet. For the 
  Freezing Spray Advisory, light to moderate accumulation of 
  freezing spray expected.

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

* WHEN...For the Small Craft Advisory, until 1 PM EST Friday. 
  For the Freezing Spray Advisory, until 8 AM EST Friday.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ255-121200-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1051 PM EST Thu Feb 11 2021

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

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

* WHERE...Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket.

* WHEN...Until 1 PM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ232-121200-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1200Z/
Nantucket Sound-
1051 PM EST Thu Feb 11 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 2 to 4 feet expected.

* WHERE...Nantucket Sound.

* WHEN...Until 7 AM EST Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
154 
WHUS71 KBOX 120748
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
248 AM EST Fri Feb 12 2021

ANZ231-251-121600-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
248 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 
  kt with gusts up to 30 kt and seas 2 to 4 feet. For the 
  Freezing Spray Advisory, light to moderate accumulation of 
  freezing spray expected.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST this 
  morning. For the Freezing Spray Advisory, until 8 AM EST this 
  morning.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ250-121600-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
248 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 25 
  kt with gusts up to 30 kt and seas 4 to 6 feet. For the 
  Freezing Spray Advisory, light accumulation of freezing spray 
  expected.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST this 
  morning. For the Freezing Spray Advisory, until 8 AM EST this 
  morning.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ254-121800-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
248 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 
  kt with gusts up to 25 kt and seas 4 to 6 feet. For the 
  Freezing Spray Advisory, light to moderate accumulation of 
  freezing spray expected.

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

* WHEN...For the Small Craft Advisory, until 1 PM EST this 
  afternoon. For the Freezing Spray Advisory, until 8 AM EST 
  this morning.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ255-121800-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
248 AM EST Fri Feb 12 2021

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

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

* WHERE...Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket.

* WHEN...Until 1 PM EST 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.

&&

$$

ANZ232-121200-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1200Z/
Nantucket Sound-
248 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 2 to 4 feet expected.

* WHERE...Nantucket Sound.

* WHEN...Until 7 AM EST 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.

&&

$$
163 
WHUS71 KBOX 121136
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
636 AM EST Fri Feb 12 2021

ANZ232-121400-
/O.EXT.KBOX.SC.Y.0016.000000T0000Z-210212T1400Z/
Nantucket Sound-
636 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM EST THIS
MORNING...

* WHAT...Northwest winds around 15 kt with gusts up to 25 kt and 
  seas 1 to 3 feet.

* WHERE...Nantucket Sound.

* WHEN...Until 9 AM EST 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.

&&

$$

ANZ231-251-121600-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
636 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 20 
  kt with gusts up to 25 kt and seas 2 to 4 feet. For the 
  Freezing Spray Advisory, light accumulation of freezing spray.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST this 
  morning. For the Freezing Spray Advisory, until 8 AM EST this 
  morning.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ250-121600-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
636 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 15 to 20 
  kt with gusts up to 25 kt and seas 3 to 5 feet. For the 
  Freezing Spray Advisory, light accumulation of freezing spray.

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

* WHEN...For the Small Craft Advisory, until 11 AM EST this 
  morning. For the Freezing Spray Advisory, until 8 AM EST this 
  morning.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ254-121800-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
/O.CON.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
636 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...FREEZING SPRAY ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS
MORNING...

* WHAT...For the Small Craft Advisory, northwest winds 10 to 20 
  kt with gusts up to 25 kt and seas 4 to 6 feet. For the 
  Freezing Spray Advisory, light accumulation of freezing spray.

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

* WHEN...For the Small Craft Advisory, until 1 PM EST this 
  afternoon. For the Freezing Spray Advisory, until 8 AM EST 
  this morning.

* IMPACTS...Operating a vessel in freezing spray is hazardous. 
  Freezing spray may render mechanical and electronic components 
  inoperative. Ice accretion on decks and superstructures may 
  result in some loss of stability. Conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should prepare for accumulation of ice on their vessel
and consider altering plans to avoid or mitigate these hazardous
navigating conditions. During freezing spray conditions the U.S.
Coast Guard advises mariners to check and ensure all life saving
devices remain free of ice. 

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

&&

$$

ANZ255-121800-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
636 AM EST Fri Feb 12 2021

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

* WHAT...Northwest winds 10 to 15 kt and seas 3 to 5 feet.

* WHERE...Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket.

* WHEN...Until 1 PM EST 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.

&&

$$
924 
WHUS71 KBOX 121305
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
805 AM EST Fri Feb 12 2021

ANZ231-251-121600-
/O.EXP.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
805 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...FREEZING SPRAY ADVISORY HAS EXPIRED...

* WHAT...Northwest winds around 15 kt with gusts up to 25 kt and 
  seas 2 to 4 feet.

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

* WHEN...Until 11 AM EST 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.

&&

$$

ANZ250-121600-
/O.EXP.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
805 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...
...FREEZING SPRAY ADVISORY HAS EXPIRED...

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

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

* WHEN...Until 11 AM EST 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.

&&

$$

ANZ254-121800-
/O.EXP.KBOX.UP.Y.0005.000000T0000Z-210212T1300Z/
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
805 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...FREEZING SPRAY ADVISORY HAS EXPIRED...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 4 to 6 feet.

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

* WHEN...Until 1 PM EST 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.

&&

$$

ANZ255-121800-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
805 AM EST Fri Feb 12 2021

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

* WHAT...North winds 10 to 15 kt and seas 3 to 5 feet.

* WHERE...Coastal Waters extending out to 25 nm South of Marthas 
  Vineyard and Nantucket.

* WHEN...Until 1 PM EST 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.

&&

$$

ANZ232-121415-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1400Z/
Nantucket Sound-
805 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS
MORNING...

* WHAT...Northwest winds around 15 kt with gusts up to 25 kt and 
  seas 1 to 3 feet.

* WHERE...Nantucket Sound.

* WHEN...Until 9 AM EST 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.

&&

$$
661 
WHUS71 KBOX 121511
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1011 AM EST Fri Feb 12 2021

ANZ250-121615-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1011 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...

* WHAT...Northwest winds around 15 kt gusting to 25 kt, and seas 
  2 to 4 feet.

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

* WHEN...Until 11 AM EST 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.

&&

$$

ANZ231-251-121615-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1600Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
1011 AM EST Fri Feb 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS 
MORNING...

* WHAT...Northwest winds around 15 kt with gusts to 25 kt, and 
  seas 1 to 3 feet.

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

* WHEN...Until 11 AM EST 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.

&&

$$

ANZ254-255-121800-
/O.CON.KBOX.SC.Y.0016.000000T0000Z-210212T1800Z/
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-
1011 AM EST Fri Feb 12 2021

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

* WHAT...Northwest winds 10 to 15 kt with gusts to 25 kt, and 
  seas 3 to 5 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 EST 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.

&&

$$

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 11, 2:52 AM ESTHeavy Freezing Spray AdvisoryBOX29 hr

Nearby

Small Craft Advisories in Massachusetts, 2021Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.