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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 23 June 2025

Today Tonight and Tuesday.

Wind southwest 15 knots diminishing to light near midnight then becoming north 10 Tuesday morning.

Scattered showers Tuesday with a risk of thunderstorms. Fog patches forming near midnight and dissipating near noon Tuesday.

Waves

Issued 03:00 AM EDT 23 June 2025
Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less overnight then building to 0.5 to 1 near noon Tuesday.

Extended Forecast

Issued 03:00 AM EDT 23 June 2025
Wednesday Wind light.
Thursday Wind light becoming east 15 knots.
Friday Wind east 15 knots diminishing to light.

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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

Lake Huron

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

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 EDT 23 June 2025 Today Tonight and Tuesday At 3:00 a.m. EDT today quasi-stationary ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 3:00 a.m. EDT today low 1002 mb located over northwestern
Ontario.
By 3:00 a.m. EDT Tuesday low 1001 mb located over central Quebec.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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