Small Craft Advisory

NWS Baltimore MD/Washington DC · US

New

Details

Small Craft Advisory Will Expire At 1 PM EDT This Afternoon

Event: Small Craft Advisory
Issued: 2026-09-20 16:59:00 UTC
Onset: 2026-09-20 16:59:00 UTC
Message expires: 2026-09-20 18:00:00 UTC
Expected end: 2026-09-20 17:00:00 UTC
Category: Meteorological
Urgency: Expected
Severity: Minor
Certainty: Likely
Response: Avoid

Description

Winds have diminished.

Affected areas

Chesapeake Bay north of Pooles Island MD
Tidal Potomac from Cobb Island MD to Smith Point VA
Patapsco River including Baltimore Harbor
Patuxent River to Broomes Island MD

Public contact

Issuer: NWS Baltimore MD/Washington DC
Website: http://www.weather.gov

Message record

Received: 2026-09-20 16:59:53 UTC
Issue to receipt: ~54s
CAP status: Actual
CAP message type: Alert
Lifecycle: New
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M2ZW53D1H750TFA1HJQHN65Q
Identifier: urn:oid:2.49.0.1.840.0.587a36deb1cd25bb9c9eeeef1384c42d1732b518.002.1
Sender: w-nws.webmaster@noaa.gov
Scope: Public
CAP source: 211803 v2.3.0
Handling codes: IPAWSv1.0
Issuing office: NWS Baltimore MD/Washington DC
AWIPS ID: CAPLWX
NWWS sequence: nwws_processor.7009
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.bcda60becb48c8a32171591b2c183f6c24bcb3a8.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 11:36:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.8f76daea775fd8940ec2c03eb95479528f8d2c88.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 04:06:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.8f76daea775fd8940ec2c03eb95479528f8d2c88.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 04:06:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.0670df5456d2d3609cc00ef9ca66c0f11c766a3c.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 00:16:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.8ddffbb9f238357461e18888de8b605b08d67304.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 00:06:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.8ddffbb9f238357461e18888de8b605b08d67304.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 00:06:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.ae77f3fe8a3b6126166141b9220eabc9c55fbe80.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 22:10:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.237a49eaf38f819eb2094ee2d8588ddf29375d78.001.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 17:49:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.491227ea92ad96019ef7713feba988ed4201dc76.001.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 13:55:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.f81def0886cebe231a817abb9b82f8bc9a05b40f.001.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 11:29:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.9996fa6fc0c73adb913d69268a7efa4410df943b.002.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 04:51:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.0dba24ba7909695969428a0fdcbe88f250df70b7.001.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 01:14:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.d73fc2fb96e515db0e403596e7213e69da0fbe35.001.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-18 16:35:00 UTC

Event codes

Name	Value
SAME	NWS
NationalWeatherService	SCY

Parameters

Name	Value
AWIPSidentifier	MWWLWX
WMOidentifier	WHUS71 KLWX 201659
NWSheadline	SMALL CRAFT ADVISORY WILL EXPIRE AT 1 PM EDT THIS AFTERNOON
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
VTEC	/O.EXP.KLWX.SC.Y.0146.000000T0000Z-260920T1700Z/
eventEndingTime	2026-09-20T13:00:00-04:00
BLOCKCHANNEL	CMAS
expiredReferences	w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.bcda60becb48c8a32171591b2c183f6c24bcb3a8.001.1,2026-09-20T07:36:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.8f76daea775fd8940ec2c03eb95479528f8d2c88.002.1,2026-09-20T00:06:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.8f76daea775fd8940ec2c03eb95479528f8d2c88.001.1,2026-09-20T00:06:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.0670df5456d2d3609cc00ef9ca66c0f11c766a3c.001.1,2026-09-19T20:16:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.8ddffbb9f238357461e18888de8b605b08d67304.002.1,2026-09-19T20:06:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.8ddffbb9f238357461e18888de8b605b08d67304.001.1,2026-09-19T20:06:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ae77f3fe8a3b6126166141b9220eabc9c55fbe80.001.1,2026-09-19T18:10:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.237a49eaf38f819eb2094ee2d8588ddf29375d78.001.1,2026-09-19T13:49:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.491227ea92ad96019ef7713feba988ed4201dc76.001.2,2026-09-19T09:55:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.f81def0886cebe231a817abb9b82f8bc9a05b40f.001.2,2026-09-19T07:29:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.9996fa6fc0c73adb913d69268a7efa4410df943b.002.2,2026-09-19T00:51:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.0dba24ba7909695969428a0fdcbe88f250df70b7.001.2,2026-09-18T21:14:00-04:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d73fc2fb96e515db0e403596e7213e69da0fbe35.001.2,2026-09-18T12:35:00-04:00

Locations

Location data

Chesapeake Bay north of Pooles Island MD
Tidal Potomac from Cobb Island MD to Smith Point VA
Patapsco River including Baltimore Harbor
Patuxent River to Broomes Island MD

Name	Value
SAME	073530
SAME	073537
SAME	073538
SAME	073542
UGC	ANZ530
UGC	ANZ537
UGC	ANZ538
UGC	ANZ542