Alert archive / Massachusetts / Small Craft Advisories in 2021

Small Craft Advisory 47, NWS Boston/Norton, MA

May 5, 2021

NWS Boston/Norton, MA issued this small craft advisory at May 5, 2021, 2:15 PM EDT. It took effect at May 5, 2021, 11:00 PM EDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
May 5, 2021, 2:15 PM EDT (18:15 UTC)
In effect from
May 5, 2021, 11:00 PM EDT
Expired
May 6, 2021, 4:34 PM EDT
In force
18 hr
Issued by
NWS Boston/Norton, MA

The text

As transmitted.

618 
WHUS71 KBOX 051815
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
215 PM EDT Wed May 5 2021

ANZ254>256-061000-
/O.CAN.KBOX.SC.Y.0046.000000T0000Z-210507T0000Z/
/O.NEW.KBOX.SC.Y.0047.210506T0300Z-210507T0000Z/
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-
215 PM EDT Wed May 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 PM
EDT THURSDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 3 to 5 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 11 PM this evening to 8 PM EDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ250-061000-
/O.NEW.KBOX.SC.Y.0047.210506T1000Z-210506T1600Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
215 PM EDT Wed May 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO NOON EDT
THURSDAY...

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

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

* WHEN...From 6 AM to noon EDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ231-251-061000-
/O.NEW.KBOX.SC.Y.0047.210506T1000Z-210506T1600Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
215 PM EDT Wed May 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO NOON EDT
THURSDAY...

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and 
  seas 2 to 3 feet expected.

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

* WHEN...From 6 AM to noon EDT Thursday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ230-061000-
/O.NEW.KBOX.SC.Y.0047.210506T1000Z-210506T1600Z/
Boston Harbor-
215 PM EDT Wed May 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM TO NOON EDT
THURSDAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and
  waves around 1 foot expected.

* WHERE...Boston Harbor.

* WHEN...From 6 AM to noon EDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
190 
WHUS71 KBOX 060757
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
357 AM EDT Thu May 6 2021

ANZ254-062100-
/O.EXT.KBOX.SC.Y.0047.000000T0000Z-210507T0200Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
357 AM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  seas 4 to 6 feet.

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

* WHEN...Until 10 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ255-062100-
/O.EXT.KBOX.SC.Y.0047.000000T0000Z-210507T2200Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
357 AM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT FRIDAY...

* WHAT...North winds 5 to 15 kt and seas 4 to 6 feet.

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

* WHEN...Until 6 PM EDT 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.

&&

$$

ANZ250-062000-
/O.EXT.KBOX.SC.Y.0047.210506T1000Z-210506T2000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
357 AM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  seas 3 to 5 feet expected.

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

* WHEN...Until 4 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.

&&

$$

ANZ231-251-061800-
/O.EXT.KBOX.SC.Y.0047.210506T1000Z-210506T1800Z/
Cape Cod Bay-Massachusetts Bay and Ipswich Bay-
357 AM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...Northwest winds around 15 kt with gusts up to 30 kt and 
  seas 2 to 4 feet expected.

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

* WHEN...Until 2 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.

&&

$$

ANZ256-062100-
/O.CON.KBOX.SC.Y.0047.000000T0000Z-210507T0000Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
357 AM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...West winds 10 to 15 kt with gusts up to 25 kt and seas 
  4 to 6 feet.

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

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

ANZ230-061600-
/O.CON.KBOX.SC.Y.0047.210506T1000Z-210506T1600Z/
Boston Harbor-
357 AM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY...

* WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and 
  waves around 2 feet expected.

* WHERE...Boston Harbor.

* WHEN...Until noon EDT today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
235 
WHUS71 KBOX 062034
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
434 PM EDT Thu May 6 2021

ANZ254-062145-
/O.CAN.KBOX.SC.Y.0047.000000T0000Z-210507T0200Z/
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
434 PM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and seas have subsided below small craft advisory levels.

$$

ANZ255-062145-
/O.CAN.KBOX.SC.Y.0047.000000T0000Z-210507T2200Z/
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
434 PM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and seas have subsided below small craft advisory levels.

$$

ANZ256-062145-
/O.CAN.KBOX.SC.Y.0047.000000T0000Z-210507T0000Z/
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
434 PM EDT Thu May 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and seas have subsided below small craft advisory levels.

$$

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.