Great Lakes - Western Lake Ontario Marine Forecast and Alerts

Canada

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Current Conditions

Canada 7 Day High and Low Temperatures Forecast

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Western Lake Ontario

Marine Forecast

Issued 03:00 AM EST 24 January 2026

Today Tonight and Sunday.

Wind northwest 15 knots diminishing to northwest 10 early this morning then backing to west 10 near noon. Wind becoming variable 10 early this evening then increasing to southeast 15 overnight. Wind increasing to southeast 25 Sunday morning then backing to east 25 near noon Sunday. Wind backing to northeast 20 Sunday evening.

Scattered flurries changing to snow near noon Sunday. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Freezing spray beginning near noon Sunday.

Winds

Issued 03:00 AM EST 24 January 2026

Today Tonight and Sunday. Wind northwest 15 knots diminishing to northwest 10 early this morning then backing to west 10 near noon. Wind becoming variable 10 early this evening then increasing to southeast 15 overnight. Wind increasing to southeast 25 Sunday morning then backing to east 25 near noon Sunday. Wind backing to northeast 20 Sunday evening.

Waves

Issued 03:00 AM EST 24 January 2026

Today Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning then building to 1 to 1.5 Sunday morning. Waves building to 2 near noon Sunday.

Weather & Visibility

Issued 03:00 AM EST 24 January 2026

Today Tonight and Sunday. Scattered flurries changing to snow near noon Sunday. Visibility 1 mile or less in precipitation.

Freezing Spray

Issued 03:00 AM EST 24 January 2026

Today Tonight and Sunday. Freezing spray warning in effect. Freezing spray beginning near noon Sunday.

Ice Forecasts

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

Warnings (In effect)

Freezing spray warning in effect

Western Lake Ontario

Issued 06:15 AM EST 24 January 2026

Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Technical Marine Synopsis

Issued 3:00 AM EST 24 January 2026 Today Tonight and Sunday At 3:00 a.m. EST today ridge located from Minnesota to Pennsylvania.
By 3:00 a.m. EST Sunday ridge located from Wisconsin to New
York State.

At 3:00 a.m. EST today quasi-stationary low located over Lake
Superior.

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