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Western Lake Ontario

Forecast

Marine Forecast

Issued 03:00 AM EST 19 February 2026

Today Tonight and Friday.

Wind northeast 20 knots veering to east 25 Friday morning then becoming southwest 25 Friday evening.

Periods of drizzle and fog patches beginning this evening changing to rain Friday morning then to snow or rain near noon Friday.

Waves

Issued 03:00 AM EST 19 February 2026
Today Tonight and Friday. Waves 1.5 metres building to 2 near noon Friday.

Extended Forecast

Issued 03:00 AM EST 19 February 2026
Saturday Wind southwest 20 knots.
Sunday Wind northeast 15 knots.
Monday Wind northeast 15 knots backing to north 20.

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 19 February 2026 Today Tonight and Friday At 3:00 a.m. EST today quasi-stationary ridge located on a line
northwest-southeast over Hudson Bay.

At 3:00 a.m. EST today dissipating low 999 mb located over western
Wisconsin.

At 3:00 a.m. EST today low 992 mb located over eastern Colorado.
By 3:00 a.m. EST Friday low 994 mb located over northern Illinois.

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