Small Craft Advisory

NWS Boston/Norton MA · US

Updated

This event was updated at 2026-11-11 06:43:00 UTC.

Details

Small Craft Advisory Now In Effect Until 7 PM EST Tuesday

Event: Small Craft Advisory
Issued: 2026-11-08 18:21:00 UTC
Onset: 2026-11-08 18:21:00 UTC
Message expires: 2026-11-09 08:00:00 UTC
Expected end: 2026-11-11 00:00:00 UTC
Category: Meteorological
Urgency: Expected
Severity: Minor
Certainty: Likely
Response: Avoid

Description

What

West winds 10 to 20 kt with gusts up to 30 kt and seas 4 to 7 feet.

Where

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.

When

Until 7 PM EST Tuesday.

Impacts

Conditions will be hazardous to small craft.

Instructions

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

Affected areas

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

Public contact

Issuer: NWS Boston/Norton MA
Website: http://www.weather.gov

Message record

Received: 2026-11-08 18:21:40 UTC
Issue to receipt: ~40s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M6Y6A1YDRG04FMQMW34KRVDE
Identifier: urn:oid:2.49.0.1.840.0.0e9967c3ea406ea1c89ef96609de6e0ebf58dedb.001.1
Sender: [email protected]
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.530
WMO heading: XOUS51
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 51

References

Identifier: urn:oid:2.49.0.1.840.0.9df6344e317334ef787428d0b4ace6af8ec1b369.001.1
Sender: [email protected]
Sent: 2026-11-08 07:11:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.2371689a23eb040cff7b60dc380699b10d95c283.004.1
Sender: [email protected]
Sent: 2026-11-08 12:39:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.b6b9f3d2a751d0d38cc6eda7ec82efb50e30b7c9.003.1
Sender: [email protected]
Sent: 2026-11-07 18:10:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.b6b9f3d2a751d0d38cc6eda7ec82efb50e30b7c9.002.1
Sender: [email protected]
Sent: 2026-11-07 18:10:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.af0e2a6b586551c5c1cc44a149a5466efa817684.002.1
Sender: [email protected]
Sent: 2026-11-07 07:25:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.af0e2a6b586551c5c1cc44a149a5466efa817684.001.1
Sender: [email protected]
Sent: 2026-11-07 07:25:00 UTC

Event codes

Name	Value
SAME	NWS
NationalWeatherService	SCY

Parameters

Name	Value
AWIPSidentifier	MWWBOX
WMOidentifier	WHUS71 KBOX 081821
NWSheadline	SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 PM EST TUESDAY
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
VTEC	/O.EXT.KBOX.SC.Y.0106.000000T0000Z-261111T0000Z/
eventEndingTime	2026-11-10T19:00:00-05:00
BLOCKCHANNEL	CMAS
expiredReferences	[email protected],urn:oid:2.49.0.1.840.0.b6b9f3d2a751d0d38cc6eda7ec82efb50e30b7c9.003.1,2026-11-07T13:10:00-05:00 [email protected],urn:oid:2.49.0.1.840.0.b6b9f3d2a751d0d38cc6eda7ec82efb50e30b7c9.002.1,2026-11-07T13:10:00-05:00 [email protected],urn:oid:2.49.0.1.840.0.af0e2a6b586551c5c1cc44a149a5466efa817684.002.1,2026-11-07T02:25:00-05:00 [email protected],urn:oid:2.49.0.1.840.0.af0e2a6b586551c5c1cc44a149a5466efa817684.001.1,2026-11-07T02:25:00-05:00

Locations

Location data

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

Name	Value
SAME	073254
SAME	073255
UGC	ANZ254
UGC	ANZ255