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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 01:27 PM EDT 08 October 2026

Today Tonight and Friday.

Strong wind warning in effect.

Wind west 20 knots diminishing to west 15 near midnight and to variable 10 Friday evening.

Scattered showers this afternoon with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 08 October 2026
Today Tonight and Friday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 late overnight and to 0.5 or less Friday evening.

Extended Forecast

Issued 03:00 AM EDT 08 October 2026
Saturday Wind northwest 15 knots diminishing to light in the morning then becoming southeast 15 late in the day.
Sunday Wind south 15 knots.
Monday Wind light.

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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)

Squall warning in effect

Western Lake Ontario

Issued 2:11 PM EDT 08 October 2026 Squalls with wind gusts up to 35 knots are expected or occurring in the area.

As of 1:09 p.m. EDT, a line of showers and thunderstorms located from Lindsay to Uxbridge is moving southeast at 30 knots.

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

Strong wind warning in effect

Western Lake Ontario

Issued 1:27 PM EDT 08 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.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 8 October 2026 Today Tonight and Friday At 10:30 a.m. EDT today departing low 995 mb located east of
James Bay.

At 10:30 a.m. EDT today departing cold front from low located on
a line northeast-southwest over Vermont.

At 10:30 a.m. EDT today ridge from 1020 mb high located on a line
northwest-southeast over North Dakota.
By 10:30 a.m. EDT Friday ridge from 1022 mb high located from
Windsor to Lake Nipigon.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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