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Small Craft Advisory — Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island, LH, St Ignace to False Detour Channel, LH
Issued
Expires
11:00 PM CDT · dim., sept. 13 2026
Issuing Office
NWS KAPX

Affected Areas

Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island, LH St Ignace to False Detour Channel, LH

Official Bulletin

* WHAT...Highest gusts up to 25 kts from the northwest and
highest waves around 5 feet expected.

* WHERE...Grand Traverse Bay south of a line Grand Traverse
Light to Norwood MI, Norwood MI to 5NM West of Mackinac Bridge
including Little Traverse Bay and Sleeping Bear Point to Grand
Traverse Light MI.

* WHEN...From 2 PM this afternoon to 11 PM EDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

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