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North Channel

Warnings

Forecast

Marine Forecast

Issued 11:30 AM EDT 12 July 2025

Today Tonight and Sunday.

Wind south 15 knots veering to west 15 this evening then diminishing to west 10 early Sunday morning. Wind backing to southwest 10 Sunday evening.

Showers ending near midnight with a risk of thunderstorms. Fog patches forming overnight and dissipating Sunday morning.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Squall warning in effect

North Channel

Issued 11:41 AM EDT 12 July 2025 Squalls with wind gusts up to 35 knots, frequent lightning and poor to very poor visibility in thunderstorms heavy at times are expected or occurring in the area.

Thunderstorms are tracking from the southwest at 25 knots.

Proceed with caution as visibility may suddenly be reduced to near zero. Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

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Great Lakes - Lake Huron Area

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