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Northern Lake Huron

Forecast

Marine Forecast

Issued 10:30 AM EDT 14 July 2025

Today Tonight and Tuesday.

Wind southwest 10 knots veering to northwest 10 this evening then becoming light late overnight. Wind becoming south 10 near noon Tuesday then increasing to south 15 Tuesday evening.

Fog patches forming near midnight and dissipating Tuesday morning.

Waves

Issued 10:30 AM EDT 14 July 2025
Today Tonight and Tuesday. Waves 0.5 metres or less building to 0.5 to 1 Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 14 July 2025
Wednesday Wind light.
Thursday Wind light increasing to northwest 15 to 20 knots.
Friday Wind north 15 knots diminishing to light.

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Weather Conditions

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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 10:30 AM EDT 14 July 2025 Today Tonight and Tuesday At 10:30 a.m. EDT today departing trough from 985 mb low located
from James Bay to Lake Nipigon.

At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Michigan.
By 10:30 a.m. EDT Tuesday ridge located on a line
northeast-southwest over southern Ontario.

By 10:30 a.m. EDT Tuesday approaching trough located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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