Northern Georgian Bay Marine Forecast and Alerts

Canada

N.America Satellite

Canada Radar

Current Conditions

Canada 7 Day High and Low Temperatures Forecast

10 Day Forecast

Lightning Danger Radar

Lightning Strikes Radar

Northern Georgian Bay

Marine Forecast

Issued 03:00 AM EST 22 December 2025

Today Tonight and Tuesday.

Wind southwest 15 knots increasing to southwest 20 early this morning then diminishing to southwest 15 this afternoon. Wind backing to south 15 this evening then veering to southwest 15 Tuesday morning. Wind increasing to west 25 near noon Tuesday then veering to northwest 30 Tuesday evening.

Scattered flurries ending near noon. Snow or rain beginning this evening and changing to scattered showers Tuesday morning. Visibility 1 mile or less in precipitation.

Winds

Issued 03:00 AM EST 22 December 2025

Today Tonight and Tuesday. Wind southwest 15 knots increasing to southwest 20 early this morning then diminishing to southwest 15 this afternoon. Wind backing to south 15 this evening then veering to southwest 15 Tuesday morning. Wind increasing to west 25 near noon Tuesday then veering to northwest 30 Tuesday evening.

Waves

Issued 03:00 AM EST 22 December 2025

Today Tonight and Tuesday. Waves 0.5 to 1 metre building to 1 to 1.5 this morning then subsiding to 0.5 to 1 early this evening. Waves building to 1.5 Tuesday afternoon and to 2 Tuesday evening.

Weather & Visibility

Issued 03:00 AM EST 22 December 2025

Today Tonight and Tuesday. Scattered flurries ending near noon. Snow or rain beginning this evening and changing to scattered showers Tuesday morning. Visibility 1 mile or less in precipitation.

Ice Forecasts

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

No watches or warnings in effect.

Technical Marine Synopsis

Issued 3:00 AM EST 22 December 2025 Today Tonight and Tuesday At 3:00 a.m. EST today ridge located on a line north-south over
Lake Erie.
By 3:00 a.m. EST Tuesday ridge located on a line northeast-southwest
over the Eastern Seaboard.

At 3:00 a.m. EST today low 1009 mb located over western South
Dakota.
By 3:00 a.m. EST Tuesday low 1010 mb located over northwestern
Ontario.

By 3:00 a.m. EST Tuesday ridge located on a line northwest-southeast
over Saskatchewan.

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