Alert archive / Massachusetts / Storm Warnings in 2020

Storm Warning 8, NWS Boston/Norton, MA

December 16, 2020

NWS Boston/Norton, MA issued this storm warning at Dec 16, 2020, 9:32 AM EST. It took effect at Dec 16, 2020, 10:00 PM EST. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 16, 2020, 9:32 AM EST (14:32 UTC)
In effect from
Dec 16, 2020, 10:00 PM EST
Expired
Dec 17, 2020, 12:00 PM EST
In force
14 hr
Issued by
NWS Boston/Norton, MA

The text

As transmitted.

702 
WHUS71 KBOX 161432
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
932 AM EST Wed Dec 16 2020

ANZ254>256-162245-
/O.UPG.KBOX.GL.W.0052.201216T2100Z-201218T0600Z/
/O.NEW.KBOX.SR.W.0008.201217T0300Z-201217T1700Z/
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-
932 AM EST Wed Dec 16 2020

...STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO NOON EST
THURSDAY...

* WHAT...Northeast winds 30 to 40 kt with gusts up to 50 kt and 
  seas 10 to 15 feet expected.

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

* WHEN...From 10 PM this evening to noon EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could 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>235-237-162245-
/O.UPG.KBOX.GL.W.0052.201216T2100Z-201218T0600Z/
/O.NEW.KBOX.SR.W.0008.201217T0300Z-201217T1500Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
932 AM EST Wed Dec 16 2020

...STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST
THURSDAY...

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and 
  seas 7 to 10 feet expected.

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

* WHEN...From 10 PM this evening to 10 AM EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could 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.

&&

$$

ANZ250-251-162245-
/O.CON.KBOX.GL.W.0052.201216T2100Z-201218T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
932 AM EST Wed Dec 16 2020

...GALE WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
1 AM EST FRIDAY...

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and 
  seas 11 to 16 feet expected.

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

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

* 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.

&&

$$

ANZ230-236-162245-
/O.CON.KBOX.GL.W.0052.201217T0500Z-201217T2000Z/
Boston Harbor-Narragansett Bay-
932 AM EST Wed Dec 16 2020

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
EST THURSDAY...

* WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and 
  waves 2 to 3 feet expected.

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

* WHEN...From midnight tonight to 3 PM 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 severe conditions.

&&

$$
3 follow-up statements
673 
WHUS71 KBOX 161950
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
250 PM EST Wed Dec 16 2020

ANZ250-251-171000-
/O.CON.KBOX.GL.W.0052.201216T2100Z-201218T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
250 PM EST Wed Dec 16 2020

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

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and 
  seas 12 to 17 feet expected.

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

* WHEN...Until 1 AM EST Friday.

* 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.

&&

$$

ANZ230-236-171000-
/O.CON.KBOX.GL.W.0052.201217T0500Z-201217T2000Z/
Boston Harbor-Narragansett Bay-
250 PM EST Wed Dec 16 2020

...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
EST THURSDAY...

* WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and
  waves 2 to 3 feet expected.

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

* WHEN...From midnight tonight to 3 PM 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 severe conditions.

&&

$$

ANZ254>256-171000-
/O.CON.KBOX.SR.W.0008.201217T0300Z-201217T1700Z/
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-
250 PM EST Wed Dec 16 2020

...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
NOON EST THURSDAY...

* WHAT...Northeast winds 30 to 40 kt with gusts up to 50 kt and 
  seas 12 to 17 feet expected.

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

* WHEN...From 10 PM this evening to noon EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could 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>235-237-171000-
/O.CON.KBOX.SR.W.0008.201217T0300Z-201217T1500Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
250 PM EST Wed Dec 16 2020

...STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 AM EST THURSDAY...

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and 
  seas 7 to 10 feet expected.

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

* WHEN...From 10 PM this evening to 10 AM EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could 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.

&&

$$
110 
WHUS71 KBOX 170926
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
426 AM EST Thu Dec 17 2020

ANZ250-251-171700-
/O.CON.KBOX.GL.W.0052.000000T0000Z-201218T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
426 AM EST Thu Dec 17 2020

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

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and 
  seas 12 to 17 feet expected.

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

* WHEN...Until 1 AM EST Friday.

* 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.

&&

$$

ANZ230-236-171700-
/O.CON.KBOX.GL.W.0052.000000T0000Z-201217T2000Z/
Boston Harbor-Narragansett Bay-
426 AM EST Thu Dec 17 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON...

* WHAT...Northeast winds 20 to 30 kt with gusts up to 40 kt and 
  waves 2 to 3 feet expected.

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

* WHEN...From midnight tonight to 3 PM 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 severe conditions.

&&

$$

ANZ254>256-171700-
/O.CON.KBOX.SR.W.0008.000000T0000Z-201217T1700Z/
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-
426 AM EST Thu Dec 17 2020

...STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY...

* WHAT...Northeast winds 30 to 40 kt with gusts up to 50 kt and 
  seas 12 to 17 feet expected.

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

* WHEN...From 10 PM this evening to noon EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could 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>235-237-171500-
/O.CON.KBOX.SR.W.0008.000000T0000Z-201217T1500Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
426 AM EST Thu Dec 17 2020

...STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING...

* WHAT...Northeast winds 25 to 35 kt with gusts up to 45 kt and 
  seas 7 to 10 feet expected.

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

* WHEN...From 10 PM this evening to 10 AM EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which
  could 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.

&&

$$
905 
WHUS71 KBOX 171456
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
956 AM EST Thu Dec 17 2020

ANZ231>235-237-172300-
/O.CAN.KBOX.SR.W.0008.000000T0000Z-201217T1500Z/
/O.EXB.KBOX.GL.W.0052.000000T0000Z-201218T0000Z/
Cape Cod Bay-Nantucket Sound-Vineyard Sound-Buzzards Bay-
Rhode Island Sound-Block Island Sound-
956 AM EST Thu Dec 17 2020

...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING...
...STORM WARNING IS CANCELLED...

* WHAT...Northeast winds becoming north at 25 to 35 kt with gusts
  up to 45 kt, and seas 7 to 10 feet expected.

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

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Very 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.

&&

$$

ANZ250-251-172300-
/O.CON.KBOX.GL.W.0052.000000T0000Z-201218T0600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
956 AM EST Thu Dec 17 2020

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

* WHAT...Northeast winds becoming north 25 to 35 kt with gusts up
  to 45 kt, and seas 12 to 17 feet expected.

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

* WHEN...Until 1 AM EST Friday.

* 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.

&&

$$

ANZ230-236-172000-
/O.CON.KBOX.GL.W.0052.000000T0000Z-201217T2000Z/
Boston Harbor-Narragansett Bay-
956 AM EST Thu Dec 17 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM EST THIS AFTERNOON...

* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and waves
  2 to 3 feet expected.

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

* WHEN...From midnight tonight to 3 PM 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 severe conditions.

&&

$$

ANZ254>256-171700-
/O.CON.KBOX.SR.W.0008.000000T0000Z-201217T1700Z/
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-
956 AM EST Thu Dec 17 2020

...STORM WARNING REMAINS IN EFFECT UNTIL NOON EST TODAY...

* WHAT...Northeast winds 30 to 40 kt with gusts up to 50 kt and 
  seas 12 to 17 feet expected.

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

* WHEN...From 10 PM this evening to noon EST Thursday.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 16, 3:39 AM ESTWinter Weather AdvisoryBOXBarnstable, Dukes33 hr
Dec 16, 9:31 AM ESTHigh Wind WarningBOXDukes, Nantucket24 hr

Nearby

Storm Warnings in Massachusetts, 2020Every storm warning in 2020

Sources

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