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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 20 January 2026

Today Tonight and Wednesday.

Wind west 30 knots backing to southwest 25 near noon then to south 20 early Wednesday morning. Wind veering to west 25 Wednesday evening.

Flurries changing to snow Wednesday morning. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Freezing spray ending early Wednesday morning. Risk of freezing spray Wednesday morning and afternoon.

Waves

Issued 10:30 AM EST 20 January 2026
Today Tonight and Wednesday. Waves 2 metres subsiding to 1.5 Wednesday morning.

Extended Forecast

Issued 03:00 AM EST 20 January 2026
Thursday Wind west 25 knots.
Friday Wind northwest 20 knots.
Saturday Wind northwest 20 knots.

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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

Southern Georgian Bay

Issued 10:30 AM EST 20 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 10:30 AM EST 20 January 2026 Today Tonight and Wednesday At 10:30 a.m. EST today ridge located from Kentucky to New York
State.
By 10:30 a.m. EST Wednesday ridge located on a line north-south
over central Quebec.

At 10:30 a.m. EST today trough located on a line north-south over
northern Ontario.
By 10:30 a.m. EST Wednesday trough located from James Bay to
Lake Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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