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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 15 January 2026

Today Tonight and Friday.

Wind north 25 knots diminishing to north 15 this afternoon and to variable 10 this evening. Wind increasing to southeast 15 Friday morning and to southeast 20 near noon Friday.

Scattered flurries ending near noon. Flurries Friday afternoon and evening. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray ending near noon. Risk of freezing spray early this afternoon.

Waves

Issued 03:00 AM EST 15 January 2026
Today Tonight and Friday. Waves 1.5 to 2 metres.

Extended Forecast

Issued 03:00 AM EST 15 January 2026
Saturday Wind southwest 15 knots increasing to southwest 20 in the morning.
Sunday Wind west 15 knots backing to southwest 20 late in the day.
Monday Wind southwest 25 knots veering to northwest 30 late in the day.

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

Freezing spray warning in effect

Northern Georgian Bay

Issued 03:00 AM EST 15 January 2026

Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 15 January 2026 Today Tonight and Friday At 3:00 a.m. EST today low 994 mb located south of Ontario.
By 3:00 a.m. EST Friday low 987 mb located over New Brunswick.

At 3:00 a.m. EST today ridge located on a line northeast-southwest
over northwestern Ontario.
By 3:00 a.m. EST Friday ridge located on a line north-south over
northeastern Ontario.

At 3:00 a.m. EST today trough located on a line north-south over
Saskatchewan.
By 3:00 a.m. EST Friday trough located on a line north-south over
northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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