Alert USA
weather NWS moderate Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL October 17, 2026 at 2:33 AM

Gale Warning

* WHAT...For the Gale Warning, north gales to 35 kt and significant waves to 12 ft occasionally to 16 ft. For the Small Craft Advisory, north winds to 30 kt and significant waves to 10 ft occasionally to 13 ft expected.

* WHERE...Winthrop Harbor to Calumet Harbor, IL.

* WHEN...For the Gale Warning, until 1 AM CDT Saturday. For the Small Craft Advisory, from 1 AM to 10 AM CDT Saturday.

* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.

Local conditions in Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL may affect travel, public safety, or daily routines. Stay informed and adjust plans if conditions change.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Residents should be prepared for possible effects on travel, public safety, and daily routines while the situation remains active.

Recommended steps: stay informed via official sources; avoid non-essential travel in the area; secure outdoor items if weather is involved; check on family and neighbors.

Alert USA is tracking this developing situation and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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