Back to All Alerts
🔵 Minor
Small Craft Advisory
Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL; Calumet Harbor IL to Gary IN; Gary to Burns Harbor IN; Burns Harbor to Michigan City IN
Small Craft Advisory issued May 4 at 3:30AM CDT until May 4 at 7:00PM CDT by NWS Chicago IL
Alert Description
* WHAT...Southwest winds to 25 kt expected. A few gusts to 30 kt this afternoon. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 10 AM this morning to 7 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft.
Safety Instructions
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Time Information
Effective
May 4, 2026, 3:00 PM
Expires
May 4, 2026, 4:30 PM
Issued
May 4, 2026, 8:30 AM
Alert Details
Severity
Minor
Urgency
Expected
Certainty
Likely
Category
Met
Issued By
NWS Chicago IL
National Weather Service