Storm Warning

NWS Boston/Norton MA · US

Updated

Details

Storm Warning Now In Effect Until 10 AM EDT Sunday

Event: Storm Warning
Issued: 2026-09-26 16:26:00 UTC
Onset: 2026-09-26 16:26:00 UTC
Message expires: 2026-09-27 05:30:00 UTC
Expected end: 2026-09-27 14:00:00 UTC
Category: Meteorological
Urgency: Immediate
Severity: Severe
Certainty: Observed
Response: Avoid

Description

What

Northeast winds 25 to 35 kt with gusts up to 55 kt and seas 6 to 9 feet.

Where

In Massachusetts coastal waters, Nantucket Sound, Vineyard Sound and Buzzards Bay. In Rhode Island coastal waters, Rhode Island Sound and Block Island Sound.

When

Until 10 AM EDT Sunday.

Impacts

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

Instructions

Mariners should remain in port, alter course, and/or secure the vessel for severe conditions.

Affected areas

Nantucket Sound
Vineyard Sound
Buzzards Bay
Rhode Island Sound
Block Island Sound

Public contact

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

Message record

Received: 2026-09-26 16:26:32 UTC
Issue to receipt: ~32s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M3F8MAP5JXFX0FFYK0FYVRZ0
Identifier: urn:oid:2.49.0.1.840.0.966ffcdf09545f1bac15f057073791df80fede0d.002.1
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.6083
WMO heading: XOUS51
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 51

References

Identifier: urn:oid:2.49.0.1.840.0.761cd7d3a4f528f0aace12609fb0482d80f9f41d.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-26 05:58:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.761cd7d3a4f528f0aace12609fb0482d80f9f41d.004.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-26 05:58:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.d3d2a99494842872c5ffbbecd96d5cf763a34706.008.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-25 18:58:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.d3d2a99494842872c5ffbbecd96d5cf763a34706.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-25 18:58:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.32f00905e1ab0f7f9866d05afc8d008eb4904e53.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-25 16:37:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.19bd578ee9e78b957ab80ef2a338220f969838f2.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-25 05:38:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.3a33e92bbaf9c392bd610915e7916278e86ce406.003.3
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-24 16:06:00 UTC

Event codes

Name	Value
SAME	NWS
NationalWeatherService	SRW

Parameters

Name	Value
AWIPSidentifier	MWWBOX
WMOidentifier	WHUS71 KBOX 261626
NWSheadline	STORM WARNING NOW IN EFFECT UNTIL 10 AM EDT SUNDAY
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
VTEC	/O.EXT.KBOX.SR.W.0005.000000T0000Z-260927T1400Z/
eventEndingTime	2026-09-27T10:00:00-04:00
BLOCKCHANNEL	CMAS
expiredReferences	w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d3d2a99494842872c5ffbbecd96d5cf763a34706.008.1,2026-09-25T14:58:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d3d2a99494842872c5ffbbecd96d5cf763a34706.002.1,2026-09-25T14:58:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.32f00905e1ab0f7f9866d05afc8d008eb4904e53.002.1,2026-09-25T12:37:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.19bd578ee9e78b957ab80ef2a338220f969838f2.002.1,2026-09-25T01:38:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.3a33e92bbaf9c392bd610915e7916278e86ce406.003.3,2026-09-24T12:06:00-04:00

Locations

Location data

Nantucket Sound
Vineyard Sound
Buzzards Bay
Rhode Island Sound
Block Island Sound

Name	Value
SAME	073232
SAME	073233
SAME	073234
SAME	073235
SAME	073237
UGC	ANZ232
UGC	ANZ233
UGC	ANZ234
UGC	ANZ235
UGC	ANZ237