Southern 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

Southern Georgian Bay

Marine Forecast

Issued 03:00 AM EST 04 November 2026

Today Tonight and Thursday.

Strong wind warning in effect.

Wind southwest 15 knots backing to southeast 15 this morning then increasing to south 20 this evening. Wind veering to southwest 20 overnight then diminishing to southwest 15 Thursday evening.

Showers this afternoon and tonight. Scattered showers Thursday.

Winds

Issued 03:00 AM EST 04 November 2026

Today Tonight and Thursday. Strong wind warning in effect. Wind southwest 15 knots backing to southeast 15 this morning then increasing to south 20 this evening. Wind veering to southwest 20 overnight then diminishing to southwest 15 Thursday evening.

Waves

Issued 03:01 AM EST 04 November 2026

Today Tonight and Thursday. Waves 0.5 to 1 metre building to 1 to 1.5 near midnight then subsiding to 0.5 to 1 Thursday evening.

Weather & Visibility

Issued 03:00 AM EST 04 November 2026

Today Tonight and Thursday. Showers this afternoon and tonight. Scattered showers Thursday.

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Southern Georgian Bay

Issued 03:00 AM EST 04 November 2026

'Strong' winds of 20 to 33 knots are 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.

Technical Marine Synopsis

Issued 3:00 AM EST 4 November 2026 Today Tonight and Thursday At 3:00 a.m. EST today low 998 mb located over western Wisconsin.
By 3:00 a.m. EST Thursday low 996 mb located over Lake Superior.

By 3:00 a.m. EST Thursday approaching high 1025 mb located over
western Manitoba.

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