Northumberland Strait, Canada Marine Forecast, Warnings and Alerts

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Northumberland Strait

Marine Forecast

Issued 08:00 PM ADT 30 April 2026

Tonight and Friday.

Strong wind warning in effect.

Wind easterly 20 knots increasing to southeast 25 to 30 early Friday morning then diminishing to southeasterly 15 to 20 early Friday evening.

Rain and fog patches Friday.

Winds

Issued 08:00 PM ADT 30 April 2026

Tonight and Friday. Strong wind warning in effect. Wind easterly 20 knots increasing to southeast 25 to 30 early Friday morning then diminishing to southeasterly 15 to 20 early Friday evening.

Weather & Visibility

Issued 08:00 PM ADT 30 April 2026

Tonight and Friday. Rain and fog patches Friday.

Ice Forecasts

Issued 10:00 AM EDT 30 April 2026 Today Tonight and Friday

Ice Edge

First ice edge estimated from New Brunswick near 4704N 6448W to
4816N 6402W to Gaspe Peninsula near 4845N 6410W. Sea ice west of the
ice edge.

Second ice edge estimated from Quebec near 5006N 6642W to 5001N
6603W to 4956N 5959W to 5102N 5743W to Newfoundland near 4908N
5824W. Sea ice north then east of the ice edge.

Ice Coverage

Ice free.

Warnings (In effect)

Strong wind warning in effect

Northumberland Strait

Issued 8:00 PM ADT 30 April 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.

Technical Marine Synopsis

Issued 8:00 PM ADT 30 April 2026 Tonight and Friday At 8:00 p.m. ADT tonight trough located on a line north-south over
the Gulf of Maine.
By 3:30 p.m. ADT Friday trough located on a line north-south over
the Marine District.

Marine Weather Statement

Issued 7:45 PM ADT 30 April 2026 A trough of low pressure over the Gulf of Maine will slowly cross the
district tonight and Friday. Strong to gale force southeasterlies
will develop ahead of the trough.

Marine interests are advised that gale warnings are in effect for
Gulf-Magdalen - northeastern half and Anticosti - southwestern half.

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