Small Craft Advisory

NWS Baltimore MD/Washington DC · US

Updated

This event was updated at 2026-10-12 20:15:00 UTC.

Details

Small Craft Advisory Remains In Effect Until 11 PM EDT Sunday

Event: Small Craft Advisory
Issued: 2026-10-11 02:34:00 UTC
Onset: 2026-10-11 05:00:00 UTC
Message expires: 2026-10-11 10:45:00 UTC
Expected end: 2026-10-12 03:00:00 UTC
Category: Meteorological
Urgency: Expected
Severity: Minor
Certainty: Likely
Response: Avoid

Description

What

East winds 10 to 20 kt with gusts up to 30 kt expected.

Where

Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of Pooles Island MD, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD, Eastern Bay, Choptank River to Cambridge MD and the Little Choptank River, and Patuxent River to Broomes Island MD.

When

Until 11 PM EDT Sunday.

Impacts

Conditions will be hazardous to small craft.

Instructions

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

Affected areas

Chesapeake Bay north of Pooles Island MD
Tidal Potomac from Key Bridge to Indian Head MD
Tidal Potomac from Indian Head to Cobb Island MD
Patapsco River including Baltimore Harbor
Chester River to Queenstown MD
Eastern Bay
Choptank River to Cambridge MD and the Little Choptank River
Patuxent River to Broomes Island MD

Public contact

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

Message record

Received: 2026-10-11 02:34:59 UTC
Issue to receipt: ~1m0s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M4MD0GYJ0TKXX567PS5F7R1M
Identifier: urn:oid:2.49.0.1.840.0.69da05d3d5e7d69a858f35621ea93e5f21f01aac.002.1
Sender: [email protected]
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.3696
WMO heading: XOUS51
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 51

References

Identifier: urn:oid:2.49.0.1.840.0.34d6a7ce60e6bca65f2e76ca166ceb6874b377b6.002.1
Sender: [email protected]
Sent: 2026-10-10 19:12:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.1708263371f32de74c13d4cb396e39a1708d3688.003.1
Sender: [email protected]
Sent: 2026-10-10 17:52:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.9283155187c1c10eab45da3e300777b4de22f454.002.1
Sender: [email protected]
Sent: 2026-10-10 05:43:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.fd50309c15f50c5eb99dbd4c90c59c6122fb8e27.003.1
Sender: [email protected]
Sent: 2026-10-09 23:36:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.fd50309c15f50c5eb99dbd4c90c59c6122fb8e27.002.1
Sender: [email protected]
Sent: 2026-10-09 23:36:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.05dcedcb6c5b91714667a76c8fb6b2da7c230b55.003.1
Sender: [email protected]
Sent: 2026-10-09 18:34:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.05dcedcb6c5b91714667a76c8fb6b2da7c230b55.002.1
Sender: [email protected]
Sent: 2026-10-09 18:34:00 UTC

Event codes

Name	Value
SAME	NWS
NationalWeatherService	SCY

Parameters

Name	Value
AWIPSidentifier	MWWLWX
WMOidentifier	WHUS71 KLWX 110234
NWSheadline	SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT SUNDAY
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
VTEC	/O.CON.KLWX.SC.Y.0157.261011T0500Z-261012T0300Z/
eventEndingTime	2026-10-11T23:00:00-04:00
BLOCKCHANNEL	CMAS
expiredReferences	[email protected],urn:oid:2.49.0.1.840.0.1708263371f32de74c13d4cb396e39a1708d3688.003.1,2026-10-10T13:52:00-04:00 [email protected],urn:oid:2.49.0.1.840.0.9283155187c1c10eab45da3e300777b4de22f454.002.1,2026-10-10T01:43:00-04:00 [email protected],urn:oid:2.49.0.1.840.0.fd50309c15f50c5eb99dbd4c90c59c6122fb8e27.003.1,2026-10-09T19:36:00-04:00 [email protected],urn:oid:2.49.0.1.840.0.fd50309c15f50c5eb99dbd4c90c59c6122fb8e27.002.1,2026-10-09T19:36:00-04:00 [email protected],urn:oid:2.49.0.1.840.0.05dcedcb6c5b91714667a76c8fb6b2da7c230b55.003.1,2026-10-09T14:34:00-04:00 [email protected],urn:oid:2.49.0.1.840.0.05dcedcb6c5b91714667a76c8fb6b2da7c230b55.002.1,2026-10-09T14:34:00-04:00

Locations

Location data

Chesapeake Bay north of Pooles Island MD
Tidal Potomac from Key Bridge to Indian Head MD
Tidal Potomac from Indian Head to Cobb Island MD
Patapsco River including Baltimore Harbor
Chester River to Queenstown MD
Eastern Bay
Choptank River to Cambridge MD and the Little Choptank River
Patuxent River to Broomes Island MD

Name	Value
SAME	073530
SAME	073535
SAME	073536
SAME	073538
SAME	073539
SAME	073540
SAME	073541
SAME	073542
UGC	ANZ530
UGC	ANZ535
UGC	ANZ536
UGC	ANZ538
UGC	ANZ539
UGC	ANZ540
UGC	ANZ541
UGC	ANZ542