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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 15 July 2025

Tonight and Wednesday.

Wind south 15 knots diminishing to south 10 late overnight then becoming light near noon Wednesday.

Scattered showers Wednesday late in the day with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 15 July 2025
Tonight and Wednesday. Waves 0.5 to 1 metre subsiding to 0.5 or less early Wednesday morning.

Extended Forecast

Issued 06:30 PM EDT 15 July 2025
Thursday Wind light increasing to north 25 knots in the afternoon.
Friday Wind northeast 15 knots diminishing to light.
Saturday Wind south 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
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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 6:30 PM EDT 15 July 2025 Tonight and Wednesday At 6:30 p.m. EDT tonight departing ridge located on a line
northeast-southwest over the East Coast of the U.S.

At 6:30 p.m. EDT tonight low 1010 mb located over northeastern
Ontario.
By 6:30 p.m. EDT Wednesday low 1008 mb located over northern
New Brunswick.

At 6:30 p.m. EDT tonight low 1002 mb located over Nebraska.
By 6:30 p.m. EDT Wednesday low 1006 mb located over Wisconsin.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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