Warning Vector

Small Craft Advisory

NWS Boston/Norton MA · US

Updated
This alert has been updated at : Small Craft Advisory — Updated.

Details

Small Craft Advisory Now In Effect From 8 AM This Morning To 5 PM EDT This Afternoon... ...Gale Watch In Effect From Tuesday Afternoon Through Thursday Afternoon

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 25 kt and seas around 3 feet expected. For the Gale Watch, northeast winds 20 to 30 kt with gusts up to 35 kt and seas 5 to 8 feet possible.

Where

Rhode Island Sound and Block Island Sound.

When

For the Small Craft Advisory, from 8 AM this morning to 5 PM EDT this afternoon. For the Gale Watch, from Tuesday afternoon through Thursday afternoon.

Impacts

Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.

Instructions

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

Affected areas

  • Rhode Island Sound
  • Block Island Sound

Public contact

Issuer
NWS Boston/Norton MA

Message record

Received
Issue to receipt
~47s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M31CS9B2R4R3JSTTPRTD4SWE
Identifier
urn:oid:2.49.0.1.840.0.837fedbcb546dda90d11f99b6a639d6904cda6c3.001.1
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.2072
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

Event codes

NameValue
SAMENWS
NationalWeatherServiceSCY

Parameters

NameValue
AWIPSidentifierMWWBOX
WMOidentifierWHUS71 KBOX 210709
NWSheadlineSMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... ...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH THURSDAY AFTERNOON
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
VTEC/O.EXT.KBOX.SC.Y.0087.260921T1200Z-260921T2100Z/
eventEndingTime2026-09-21T17:00:00-04:00
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.28699bb856686343f16576b7f7f3ef731eb7dea0.003.1,2026-09-20T13:57:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d9f1011d0072c85969556cd9c23da17fdea950be.002.1,2026-09-20T03:59:00-04:00
Locations

Location data

  • Rhode Island Sound
  • Block Island Sound
NameValue
SAME073235
SAME073237
UGCANZ235
UGCANZ237