Small Craft Advisory

NWS Chicago IL · US

Updated

Details

Small Craft Advisory Will Expire At 10 AM CDT This Morning

Event: Small Craft Advisory
Issued: 2026-09-23 14:55:00 UTC
Onset: 2026-09-23 14:55:00 UTC
Message expires: 2026-09-23 16:00:00 UTC
Expected end: 2026-09-23 15:00:00 UTC
Category: Meteorological
Urgency: Expected
Severity: Minor
Certainty: Likely
Response: Avoid

Description

Waves have started to subside below Small Craft criteria and will continue to do so through the afternoon. However, 2 to 4 ft waves will persist along the Indiana nearshore leading to choppy boating conditions.

Affected areas

Calumet Harbor IL to Gary IN
Gary to Burns Harbor IN

Public contact

Issuer: NWS Chicago IL
Website: http://www.weather.gov

Message record

Received: 2026-09-23 14:55:42 UTC
Issue to receipt: ~43s
CAP status: Actual
CAP message type: Update
Lifecycle: Updated
Source: NWWS-OI
Feed: NWWS
Recovered: No

CAP routing and identity

ULID: 01M37C7W6TRPEXQRM7W35CXGS9
Identifier: urn:oid:2.49.0.1.840.0.0aae372364b81be37bbe958b5ad4fd1054ab7101.001.1
Sender: w-nws.webmaster@noaa.gov
Scope: Public
CAP source: 211803 v2.3.0
Handling codes: IPAWSv1.0
Issuing office: NWS Chicago IL
AWIPS ID: CAPLOT
NWWS sequence: nwws_processor.3811
WMO heading: XOUS53
WMO data type: CAP alert message XML (XO)
WMO geography: United States (US)
WMO bulletin number: 53

References

Identifier: urn:oid:2.49.0.1.840.0.9a095604720e66d60e8e4ab58bc1dcf6737d851d.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-23 08:11:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.dba92587078ccbf04f1091ce9c11238b452d68f5.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-23 02:44:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.e95f5fec49efa0572fe91508d2f5292741da41e1.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-22 19:46:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.65c284bcc478d4aef8d995e68ae05589ac61b186.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-22 15:00:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.9ddec9da22b19c262da3f91140367d175bf4c3cf.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-22 07:55:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.b8fd3ff0990a3dba931a77aba4a5ea9762b3f65c.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-22 02:59:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.b7457c662de61b559c92ba977656487cdb102878.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 23:48:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.b95a2ee79235b88aba61b53d898e424d019efa9c.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 18:49:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.cbcb9d63bd75f238e06e89b5e527ba900077bb95.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 15:15:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.a88eee5232332ebfdae74b81381c49d7b34599f1.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 08:15:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.e4c60a5ef30924cee1363985cc4ba626d1326183.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-21 02:32:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.fc8a27fa906e9f847a00746ad8670a329af3e8af.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 19:52:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.0b7d215e362576ad82e4a4700f1ba00489b2c2ec.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 15:22:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.d3a155fb2b849f868971dff6357e9c477fcf3d9d.002.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 08:09:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.008cd0457904a69b1a025792165a2f3f7ab8772f.002.2
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 05:07:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.dfb557806d861d452fd95e70823e7fe0bf47e7f5.002.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-20 02:57:00 UTC

Identifier: urn:oid:2.49.0.1.840.0.ee5d9fad2a9488014e676119ebc3706561d89171.003.1
Sender: w-nws.webmaster@noaa.gov
Sent: 2026-09-19 19:56:00 UTC

Event codes

Name	Value
SAME	NWS
NationalWeatherService	SCY

Parameters

Name	Value
AWIPSidentifier	MWWLOT
WMOidentifier	WHUS73 KLOT 231455
NWSheadline	SMALL CRAFT ADVISORY WILL EXPIRE AT 10 AM CDT THIS MORNING
BLOCKCHANNEL	EAS
BLOCKCHANNEL	NWEM
VTEC	/O.EXP.KLOT.SC.Y.0083.000000T0000Z-260923T1500Z/
eventEndingTime	2026-09-23T10:00:00-05:00
BLOCKCHANNEL	CMAS
expiredReferences	w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.dba92587078ccbf04f1091ce9c11238b452d68f5.002.1,2026-09-22T21:44:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.e95f5fec49efa0572fe91508d2f5292741da41e1.002.1,2026-09-22T14:46:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.65c284bcc478d4aef8d995e68ae05589ac61b186.002.1,2026-09-22T10:00:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.9ddec9da22b19c262da3f91140367d175bf4c3cf.002.1,2026-09-22T02:55:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b8fd3ff0990a3dba931a77aba4a5ea9762b3f65c.003.1,2026-09-21T21:59:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b7457c662de61b559c92ba977656487cdb102878.003.1,2026-09-21T18:48:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.b95a2ee79235b88aba61b53d898e424d019efa9c.003.1,2026-09-21T13:49:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.cbcb9d63bd75f238e06e89b5e527ba900077bb95.003.1,2026-09-21T10:15:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.a88eee5232332ebfdae74b81381c49d7b34599f1.003.1,2026-09-21T03:15:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.e4c60a5ef30924cee1363985cc4ba626d1326183.002.1,2026-09-20T21:32:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.fc8a27fa906e9f847a00746ad8670a329af3e8af.002.1,2026-09-20T14:52:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.0b7d215e362576ad82e4a4700f1ba00489b2c2ec.002.1,2026-09-20T10:22:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.d3a155fb2b849f868971dff6357e9c477fcf3d9d.002.2,2026-09-20T03:09:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.008cd0457904a69b1a025792165a2f3f7ab8772f.002.2,2026-09-20T00:07:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.dfb557806d861d452fd95e70823e7fe0bf47e7f5.002.1,2026-09-19T21:57:00-05:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.ee5d9fad2a9488014e676119ebc3706561d89171.003.1,2026-09-19T14:56:00-05:00

Locations

Location data

Calumet Harbor IL to Gary IN
Gary to Burns Harbor IN

Name	Value
SAME	092743
SAME	092744
UGC	LMZ743
UGC	LMZ744