Small Craft Advisory issued September 8 at 3:54PM EDT until September 10 at 5:00PM EDT by NWS Gaylord MI

Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island; St Ignace to False Detour Channel; 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island; Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary

Urgency: Expected

Certainty: Likely

Onset: 9/9/2026, 9:00:00 AM

Expires: 9/9/2026, 4:00:00 AM

Details

* WHAT...Highest gusts up to 30 kts from the west and highest waves around 4 feet expected. * WHERE...Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island, St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island and Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary. * WHEN...From 5 AM Wednesday to 5 PM EDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

What To Do

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

Other Active Small Craft Advisory Alerts

Small Craft Advisory issued September 8 at 3:54PM EDT until September 10 at 8:00AM EDT by NWS Gaylord MI

Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI

Small Craft Advisory issued September 8 at 3:54PM EDT until September 9 at 11:00PM EDT by NWS Gaylord MI

Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI; Seul Choix Point to 5NM West of Mackinac Bridge; Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay; Sleeping Bear Point to Grand Traverse Light MI; Point Betsie to Sleeping Bear Point MI; Manistee to Point Betsie MI

Small Craft Advisory issued September 8 at 3:54PM EDT until September 9 at 11:00PM EDT by NWS Gaylord MI

Sturgeon Pt to Alabaster MI

Small Craft Advisory issued September 8 at 3:54PM EDT until September 9 at 11:00PM EDT by NWS Gaylord MI

St. Marys River Point Iroquois to E. Potagannissing Bay

Small Craft Advisory issued September 8 at 3:51PM EDT until September 9 at 11:00PM EDT by NWS Marquette MI

Saxon Harbor WI to Black River MI

Source: National Weather Service.