Alert archive / Massachusetts / Small Craft Advisories in 2021

Small Craft Advisory 5, NWS Boston/Norton, MA

January 17, 2021

NWS Boston/Norton, MA issued this small craft advisory at Jan 17, 2021, 6:01 PM EST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jan 17, 2021, 6:01 PM EST (23:01 UTC)
Expired
Jan 18, 2021, 3:26 AM EST
In force
9 hr
Issued by
NWS Boston/Norton, MA

The text

As transmitted.

338 
WHUS71 KBOX 172301
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
601 PM EST Sun Jan 17 2021

ANZ230-236-180700-
/O.EXP.KBOX.GL.W.0003.000000T0000Z-210117T2300Z/
/O.NEW.KBOX.SC.Y.0005.210117T2301Z-210118T1200Z/
Boston Harbor-Narragansett Bay-
601 PM EST Sun Jan 17 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST MONDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...Southwest winds 10 to 15 kt with gusts up to 30 kt and 
  waves 1 to 3 feet.

* WHERE...In Massachusetts coastal waters, Boston Harbor. In 
  Rhode Island coastal waters, Narragansett Bay.

* WHEN...Until 7 AM EST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ231>235-237-251-180500-
/O.CON.KBOX.GL.W.0003.000000T0000Z-210118T0500Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
601 PM EST Sun Jan 17 2021

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

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

* WHERE...Portions of Massachusetts coastal waters and Rhode 
  Island coastal waters. 

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-254>256-180500-
/O.CON.KBOX.GL.W.0003.000000T0000Z-210118T0500Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
601 PM EST Sun Jan 17 2021

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...West winds 20 to 25 kt with gusts up to 40 kt and seas 
  6 to 11 feet.

* WHERE...In Massachusetts coastal waters, 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 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
425 
WHUS71 KBOX 180309
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1009 PM EST Sun Jan 17 2021

ANZ231>235-237-251-180500-
/O.CON.KBOX.GL.W.0003.000000T0000Z-210118T0500Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
Massachusetts Bay and Ipswich Bay-
1009 PM EST Sun Jan 17 2021

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

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

* WHERE...Portions of Massachusetts coastal waters and Rhode 
  Island coastal waters.

* WHEN...Until midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-254>256-180500-
/O.CON.KBOX.GL.W.0003.000000T0000Z-210118T0500Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1009 PM EST Sun Jan 17 2021

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...West winds 20 to 25 kt with gusts up to 40 kt and seas 
  6 to 11 feet.

* WHERE...In Massachusetts coastal waters, 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 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ230-236-181115-
/O.CON.KBOX.SC.Y.0005.000000T0000Z-210118T1200Z/
Boston Harbor-Narragansett Bay-
1009 PM EST Sun Jan 17 2021

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

* WHAT...Southwest winds 10 to 15 kt with gusts up to 30 kt and 
  waves 1 to 3 feet.

* WHERE...In Massachusetts coastal waters, Boston Harbor. In 
  Rhode Island coastal waters, Narragansett Bay.

* WHEN...Until 7 AM EST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
912 
WHUS71 KBOX 180826
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
326 AM EST Mon Jan 18 2021

ANZ230-236-180930-
/O.CAN.KBOX.SC.Y.0005.000000T0000Z-210118T1200Z/
Boston Harbor-Narragansett Bay-
326 AM EST Mon Jan 18 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

ANZ254>256-181630-
/O.NEW.KBOX.SC.Y.0006.210118T0826Z-210119T1300Z/
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-
326 AM EST Mon Jan 18 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EST TUESDAY...

* WHAT...West winds 15 to 20 kt with gusts up to 30 kt and seas 
  5 to 8 feet.

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

* WHEN...Until 8 AM EST 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>235-237-181630-
/O.NEW.KBOX.SC.Y.0006.210118T0826Z-210119T0900Z/
Nantucket Sound-Vineyard Sound-Buzzards Bay-Rhode Island Sound-
Block Island Sound-
326 AM EST Mon Jan 18 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST TUESDAY...

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

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

* WHEN...Until 4 AM EST 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.

&&

$$

ANZ231-251-181630-
/O.NEW.KBOX.SC.Y.0006.210118T0826Z-210119T0500Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
326 AM EST Mon Jan 18 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

* WHAT...West winds 10 to 20 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 midnight EST tonight.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-181630-
/O.NEW.KBOX.SC.Y.0006.210118T0826Z-210119T0900Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
326 AM EST Mon Jan 18 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST TUESDAY...

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

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

* WHEN...Until 4 AM EST 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 9:23 AM ESTWind AdvisoryBOXNantucket9 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.