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Government of Canada / Gouvernement du Canada

Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 March 2026

Today Tonight and Friday.

Wind southwest 15 knots veering to west 15 early this morning then diminishing to northwest 10 early this evening. Wind becoming light late this evening then increasing to south 20 overnight. Wind backing to southeast 15 Friday morning then becoming northwest 15 near noon Friday. Wind diminishing to variable 10 Friday evening.

Periods of snow ending early this morning. Rain beginning near midnight with a risk of freezing rain and changing to scattered showers Friday morning and ending near noon Friday. Visibility as low as 1 mile in precipitation.

Waves

Issued 03:00 AM EDT 19 March 2026
Today Tonight and Friday. Over open water waves 1 to 1.5 metres.

Extended Forecast

Issued 03:00 AM EDT 19 March 2026
Saturday Wind light becoming southeast 15 knots late in the day.
Sunday Wind northeast 15 knots increasing to northeast 20.
Monday Wind north 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 18 March 2026 Today Tonight and Thursday 3 tenths new lake ice including 1 tenth thick lake ice except 7 tenths thin lake ice including 2 tenths thick lake ice in the northwestern section. 9 tenths thick lake ice along parts of the Bruce Peninsula shore. Consolidated thick lake ice along parts of the shore and near the Straits of Mackinac.

*Ice Forecast and Warnings also apply to U.S. waters

    

[ Canadian Ice Service ]

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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Northern Lake Huron

Issued 12:00 PM EDT 18 March 2026 Today Tonight and Thursday

Ice Coverage

3 tenths new lake ice including 1 tenth thick lake ice except 7
tenths thin lake ice including 2 tenths thick lake ice in the
northwestern section. 9 tenths thick lake ice along parts of the
Bruce Peninsula shore. Consolidated thick lake ice along parts of
the shore and near the Straits of Mackinac.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 18 March 2026 Today Tonight and Thursday

Ice Coverage

1 tenth new lake ice except 7 tenths new lake ice including 2 tenths
thick lake ice in the northeastern section.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 18 March 2026 Today Tonight and Thursday

Ice Coverage

Open water.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 18 March 2026 Today Tonight and Thursday

Ice Coverage

7 tenths thick lake ice. Consolidated thick lake ice in Bays de Noc
and in southern Green Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 19 March 2026 Today Tonight and Friday At 3:00 a.m. EDT today low 1010 mb located over northeastern
Ontario.
By 3:00 a.m. EDT Friday departing low 1013 mb located over Quebec.

At 3:00 a.m. EDT today ridge located on a line north-south over
eastern Manitoba.
By 3:00 a.m. EDT Friday ridge located on a line north-south over
eastern Ontario.

By 3:00 a.m. EDT Friday low 1005 mb located over northwestern
Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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