Warning Vector

Small Craft Advisory

NWS Boston/Norton MA ยท US

Updated

Details

Small Craft Advisory Remains In Effect Until 2 AM EDT Friday... ...Gale Warning Remains In Effect From 2 AM To 11 AM EDT Friday... ...Storm Watch Remains In Effect From Friday Morning Through Saturday Evening

Event
Small Craft Advisory
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Expected
Severity
Minor
Certainty
Likely
Response
Avoid

Description

What

For the Small Craft Advisory, northeast winds 15 to 20 kt with gusts up to 30 kt and seas 7 to 10 feet. For the Gale Warning, northeast winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 13 feet expected. For the Storm Watch, northeast winds 30 to 40 kt with gusts up to 50 kt and seas 13 to 18 feet possible.

Where

In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. In Atlantic coastal waters, Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM.

When

For the Small Craft Advisory, until 2 AM EDT Friday. For the Gale Warning, from 2 AM to 11 AM EDT Friday. For the Storm Watch, from Friday morning through Saturday evening.

Impacts

Storm force winds and hazardous seas could capsize or damage vessels and reduce visibility.

Instructions

Mariners should prepare to remain in port, alter course, and/or secure the vessel before the onset of severe conditions.

Affected areas

  • Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
  • Massachusetts Bay and Ipswich Bay
  • Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM

Public contact

Issuer
NWS Boston/Norton MA

Message record

Received
Issue to receipt
~1m11s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M390B02GZTHGRJMMGK5F0HG5
Identifier
urn:oid:2.49.0.1.840.0.96cf3b0da1fcad84fd4aa24589864a8a2b1b8547.001.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Boston/Norton MA
AWIPS ID
CAPBOX
NWWS sequence
nwws_processor.75
WMO heading
XOUS51
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
51

References

Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Identifier
urn:oid:2.49.0.1.840.0.37a74d0a6a8d747f0bc6a51e7981ca23fe11cd7e.007.1
Sender
w-nws.webmaster@noaa.gov
Sent

Event codes

NameValue
SAMENWS
NationalWeatherServiceSCY

Parameters

NameValue
AWIPSidentifierMWWBOX
WMOidentifierWHUS71 KBOX 240605
NWSheadlineSMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT FRIDAY... ...GALE WARNING REMAINS IN EFFECT FROM 2 AM TO 11 AM EDT FRIDAY... ...STORM WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY EVENING
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.CON.KBOX.SC.Y.0088.000000T0000Z-260925T0600Z/
eventEndingTime2026-09-25T02:00:00-04:00
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.22080b684e3dc39866cab6f9cf7ef56c037fbbd9.002.1,2026-09-23T02:24:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.22080b684e3dc39866cab6f9cf7ef56c037fbbd9.001.1,2026-09-23T02:24:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.df451fb3f6cd2435ea6db0531db9480f6f7a9b79.007.1,2026-09-22T16:29:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.37a74d0a6a8d747f0bc6a51e7981ca23fe11cd7e.007.1,2026-09-22T06:35:00-04:00
Locations

Location data

  • Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
  • Massachusetts Bay and Ipswich Bay
  • Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM
NameValue
SAME073250
SAME073251
SAME073280
UGCANZ250
UGCANZ251
UGCANZ280