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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 13 October 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind variable 10 knots increasing to west 15 near midnight and to northwest 20 early Wednesday morning. Wind diminishing to northwest 15 Wednesday evening.

Scattered showers this evening with a risk of thunderstorms. Scattered showers Wednesday.

Waves

Issued 06:30 PM EDT 13 October 2026
Tonight and Wednesday. Waves 0.5 metres or less building to 0.5 to 1 late overnight and to 1 to 1.5 Wednesday morning. Waves subsiding to 0.5 to 1 Wednesday evening.

Extended Forecast

Issued 06:30 PM EDT 13 October 2026
Thursday Wind north 15 knots veering to east 15 in the afternoon then increasing to east 20 late in the day.
Friday Wind north 15 knots increasing to north 35 late in the day.
Saturday Wind north 35 knots diminishing to west 25.

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

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

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Ontario

Issued 6:30 PM EDT 13 October 2026

'Strong' winds of 20 to 33 knots are 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.

Watches (Ended)

Squall watch ended

Eastern Lake Ontario

Issued 6:48 PM EDT 13 October 2026
Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 13 October 2026 Tonight and Wednesday At 6:30 p.m. EDT tonight departing ridge located on a line
northwest-southeast over Nova Scotia.

At 6:30 p.m. EDT tonight low 1004 mb located east of Toronto.
By 6:30 p.m. EDT Wednesday low 1001 mb located near Prince Edward
Island.

By 6:30 p.m. EDT Wednesday high 1024 mb located near Lake Nipigon.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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