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

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Great Slave Lake - basin

Marine Forecast

Issued 05:00 PM MDT 04 June 2026

Tonight and Friday.

Strong wind warning in effect.

Wind light increasing to east 15 knots this evening and to east 20 near midnight. Wind diminishing to light Friday morning then becoming east 10 near noon Friday. Wind becoming light Friday afternoon.

Showers Friday with a risk of thunderstorms.

Winds

Issued 05:00 PM MDT 04 June 2026

Tonight and Friday. Strong wind warning in effect. Wind light increasing to east 15 knots this evening and to east 20 near midnight. Wind diminishing to light Friday morning then becoming east 10 near noon Friday. Wind becoming light Friday afternoon.

Weather & Visibility

Issued 05:00 PM MDT 04 June 2026

Tonight and Friday. Showers Friday with a risk of thunderstorms.

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 June 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 or Weatheradio stations.

There is no Synopsis issued for this area.

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