Alert archive / Massachusetts / Small Craft Advisories in 2021

Small Craft Advisory 77, NWS Boston/Norton, MA

September 5, 2021

NWS Boston/Norton, MA issued this small craft advisory at Sep 5, 2021, 2:40 AM EDT. It took effect at Sep 5, 2021, 11:00 PM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Sep 5, 2021, 2:40 AM EDT (06:40 UTC)
In effect from: Sep 5, 2021, 11:00 PM EDT
Expired: Sep 6, 2021, 8:23 AM EDT
In force: 9 hr
Issued by: NWS Boston/Norton, MA

The text

As transmitted.

798 
WHUS71 KBOX 050640
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
240 AM EDT Sun Sep 5 2021

ANZ255-256-051945-
/O.NEW.KBOX.SC.Y.0077.210906T0300Z-210906T1500Z/
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-
240 AM EDT Sun Sep 5 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
11 AM EDT MONDAY...

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

* WHERE...In Massachusetts coastal waters, 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 11 AM EDT 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.

&&

$$

Frank

4 follow-up statements

995 
WHUS71 KBOX 051608
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
1208 PM EDT Sun Sep 5 2021

ANZ255-256-060415-
/O.CON.KBOX.SC.Y.0077.210906T0300Z-210906T1500Z/
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-
1208 PM EDT Sun Sep 5 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM EDT MONDAY...

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

* WHERE...In Massachusetts coastal waters, 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 11 AM EDT 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.

&&

$$

266 
WHUS71 KBOX 051934
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
334 PM EDT Sun Sep 5 2021

ANZ235-237-060845-
/O.EXB.KBOX.SC.Y.0077.210906T0300Z-210906T1200Z/
Rhode Island Sound-Block Island Sound-
334 PM EDT Sun Sep 5 2021

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

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

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

* WHEN...From 11 PM this evening to 8 AM EDT 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.

&&

$$

ANZ255-256-060845-
/O.EXT.KBOX.SC.Y.0077.210906T0300Z-210906T1800Z/
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-
334 PM EDT Sun Sep 5 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 11 PM THIS EVENING TO
2 PM EDT MONDAY...

* WHAT...Southwest winds 15 to 20 kt with gusts up to 25 kt and 
  seas 4 to 6 feet expected.

* WHERE...In Massachusetts coastal waters, 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 2 PM EDT 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.

&&

$$

857 
WHUS71 KBOX 060648
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
248 AM EDT Mon Sep 6 2021

ANZ235-237-060800-
/O.CAN.KBOX.SC.Y.0077.000000T0000Z-210906T1200Z/
Rhode Island Sound-Block Island Sound-
248 AM EDT Mon Sep 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and seas have diminished below small craft advisory
thresholds. Therefore, the small craft advisory has been
cancelled.

$$

ANZ255-256-061300-
/O.EXT.KBOX.SC.Y.0077.000000T0000Z-210906T1300Z/
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-
248 AM EDT Mon Sep 6 2021

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

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

* WHERE...In Massachusetts coastal waters, 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 9 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.

&&

$$

Frank

838 
WHUS71 KBOX 061223
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
823 AM EDT Mon Sep 6 2021

ANZ255-256-061330-
/O.CAN.KBOX.SC.Y.0077.000000T0000Z-210906T1300Z/
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-
823 AM EDT Mon Sep 6 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and seas have fallen below small craft criteria.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 5, 2:37 AM EDT	River Flood Warning	BOX	Bristol, Plymouth	13 hr
Sep 4, 9:28 PM EDT	River Flood Warning	BOX	Washington	9 hr

Nearby

Small Craft Advisories in Massachusetts, 2021 Every 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.