Alert USA
weather NWS minor Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL November 12, 2026 at 12:44 AM

Small Craft Advisory

* WHAT...For the first Small Craft Advisory, north winds to 30 kt and significant waves to 7 ft occasionally to 9 ft expected. For the Gale Warning, north gales to 35 kt and significant waves to 14 ft occasionally to 18 ft expected. For the second Small Craft Advisory, north winds to 30 kt with a few gale force gusts to 35 kt and significant waves to 14 ft occasionally to 18 ft expected.

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

* WHEN...For the first Small Craft Advisory, from midnight tonight to 6 AM CST Thursday. For the Gale Warning, from 6 AM to 5 PM CST Thursday. For the second Small Craft Advisory, from 5 PM Thursday to 4 AM CST 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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