Johnstone Strait Marine Forecast, Warnings and Alerts

Canada

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Johnstone Strait

Marine Forecast

Issued 09:30 PM PDT 13 October 2025

Tonight and Tuesday.

Wind northwest 10 to 20 knots diminishing to light late overnight then increasing to northwest 10 to 20 late Tuesday afternoon.

Winds

Issued 09:30 PM PDT 13 October 2025

Tonight and Tuesday. Wind northwest 10 to 20 knots diminishing to light late overnight then increasing to northwest 10 to 20 late Tuesday afternoon.

There is no ice forecast issued for this area.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 9:30 PM PDT 13 October 2025 Tonight and Tuesday At 9:30 p.m. PDT tonight quasi-stationary ridge located on a line
northeast-southwest over Haida Gwaii.

At 9:30 p.m. PDT tonight quasi-stationary high located over BC
interior.

At 7:00 a.m. PDT Tuesday frontal system located west of Bowie.
By 5:00 p.m. PDT Tuesday weakening frontal system located over
northern Bowie.

Marine Weather Statement

Issued 9:20 PM PDT 13 October 2025 The ridge of high pressure will strengthen again over Southern BC
Interior overnight. Strong to gale force outflow winds will
Develop through Howe Sound tonight then ease late Tuesday morning.

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