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Northern Lake Huron

Forecast

Marine Forecast

Issued 03:00 AM EDT 08 March 2026

Today Tonight and Monday.

Wind west 20 to 25 knots diminishing to southwest 15 early this morning then increasing to southwest 25 to 30 late this morning. Wind diminishing to southwest 20 this afternoon then increasing to southwest 25 near midnight. Wind diminishing to southwest 20 Monday afternoon except northwest 15 over northern sections. Wind diminishing to variable 10 Monday evening.

Scattered flurries beginning near noon changing to scattered showers this afternoon and ending near midnight.

Waves

Issued 03:00 AM EDT 08 March 2026
Today Tonight and Monday. Over open water waves 1.5 to 2 metres subsiding to 1 to 1.5 early this morning and to 0.5 to 1 Monday afternoon. Waves subsiding to 0.5 or less Monday evening.

Extended Forecast

Issued 03:00 AM EDT 08 March 2026
Tuesday Wind variable 15 knots increasing to northeast 25 late in the day.
Wednesday Wind northeast 25 knots backing to northwest 20 late in the day.
Thursday Wind northwest 25 to 30 knots diminishing to northwest 15 late in the day.

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Weather Conditions

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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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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 8 March 2026 Today Tonight and Monday At 3:00 a.m. EDT today trough located on a line northeast-southwest
over the St. Lawrence River.
By 3:00 a.m. EDT Monday departing trough located on a line
northeast-southwest over Nova Scotia.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over northeastern Ontario.
By 3:00 a.m. EDT Monday weakening ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 3:00 a.m. EDT today low 985 mb located over the Ontario -
Manitoba border.
By 3:00 a.m. EDT Monday low 984 mb located northeast of James Bay.

By 3:00 a.m. EDT Monday approaching low 988 mb located near Lake
of the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

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