Eastern Lake Superior, Canada Marine Forecast, Warnings and Alerts

Canada

N.America Satellite

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Current Conditions

Canada 7 Day High and Low Temperatures Forecast

10 Day Forecast

Lightning Danger Radar

Lightning Strikes Radar

Eastern Lake Superior

Marine Forecast

Issued 10:30 AM EST 04 November 2025

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind west 20 knots diminishing to west 15 this afternoon then backing to southwest 15 this evening. Wind diminishing to variable 10 late overnight then increasing to northwest 15 early Wednesday morning. Wind increasing to northwest 25 late Wednesday morning and to northwest 30 Wednesday afternoon.

Showers overnight and Wednesday.

Winds

Issued 10:30 AM EST 04 November 2025

Today Tonight and Wednesday. Strong wind warning in effect. Wind west 20 knots diminishing to west 15 this afternoon then backing to southwest 15 this evening. Wind diminishing to variable 10 late overnight then increasing to northwest 15 early Wednesday morning. Wind increasing to northwest 25 late Wednesday morning and to northwest 30 Wednesday afternoon.

Waves

Issued 10:30 AM EST 04 November 2025

Today Tonight and Wednesday. Waves 2 metres subsiding to 1 to 1.5 near noon and to 1 early this evening. Waves building to 1.5 Wednesday morning and to 3 Wednesday afternoon.

Weather & Visibility

Issued 10:30 AM EST 04 November 2025

Today Tonight and Wednesday. Showers overnight and Wednesday.

Ice Forecasts

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

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 10:30 AM EST 04 November 2025

'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 or Weatheradio stations.

Technical Marine Synopsis

Issued 10:30 AM EST 4 November 2025 Today Tonight and Wednesday At 10:30 a.m. EST today ridge located on a line northwest-southeast
over Ohio.
By 10:30 a.m. EST Wednesday departing ridge located on a line
east-west over the Eastern Seaboard.

By 10:30 a.m. EST Wednesday deepening low 1005 mb located over
Lake Huron.

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