Great Slave Lake - Basin, Canada Marine Forecast, Warnings and Alerts

Canada

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Great Slave Lake - basin

Marine Forecast

Issued 05:00 PM MDT 04 August 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind northwest 15 knots increasing to north 20 early Wednesday morning then diminishing to north 10 near noon Wednesday. Wind increasing to north 20 Wednesday evening.

Showers ending this evening. Showers Wednesday.

Winds

Issued 05:00 PM MDT 04 August 2026

Tonight and Wednesday. Strong wind warning in effect. Wind northwest 15 knots increasing to north 20 early Wednesday morning then diminishing to north 10 near noon Wednesday. Wind increasing to north 20 Wednesday evening.

Weather & Visibility

Issued 05:00 PM MDT 04 August 2026

Tonight and Wednesday. Showers ending this evening. Showers Wednesday.

There is no ice forecast issued for this area.

Warnings (In effect)

Strong wind warning in effect

Great Slave Lake - basin

Issued 5:00 PM MDT 04 August 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.

There is no Synopsis issued for this area.

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