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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 10:30 AM PDT 31 August 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind light becoming northwest 5 to 15 knots early this evening then diminishing to light late overnight. Wind increasing to southeast 15 Tuesday morning and to southeast 20 to 30 Tuesday afternoon.

Showers Tuesday evening.

Extended Forecast

Issued 04:00 AM PDT 31 August 2026
Wednesday Wind southeast 25 to 35 knots diminishing to southeast 15 to 25 in the afternoon.
Thursday Wind southeast 10 to 20 knots diminishing to light.
Friday Wind light.

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Map of Pacific - Georgia Basin marine weather areas Discovery Island La Perouse Bank - 46206 Georgia Strait - 46303 Sentry Shoal - 46131 Halibut Bank - 46146 English Bay – 46304 Powell River Airport Entrance Island Fanny Island Vancouver Int'l Airport Tsawwassen Ferry Terminal Sand Heads Lightstation Point Atkinson Squamish Airport Sechelt Comox Airport Howe Sound - Pam Rocks Grief Point Tofino Airport Port Alberni Estevan Point Sisters Islets Nanaimo Airport Saturna Island West Vancouver Esquimalt Harbour Kelp Reefs Race Rocks Lightstation Sheringham Point University of Victoria Victoria Gonzales Victoria Int'l Airport Vancouver Harbour Ballenas Islands Campbell River Airport
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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Johnstone Strait

Issued 10:30 AM PDT 31 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.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM PDT 31 August 2026 Today Tonight and Tuesday At 10:30 a.m. PDT today frontal system located off Cape St. James.
By 9:30 p.m. PDT tonight dissipating frontal system located on a
line northeast-southwest over eastern Queen Charlotte Sound.

At 10:30 a.m. PDT today ridge located on a line northeast-southwest
over central Vancouver Island.
By 4:00 p.m. PDT today ridge located on a line north-south over
northern Vancouver Island.

At 4:00 a.m. PDT Tuesday deepening trough located over Bowie.
By 4:00 p.m. PDT Tuesday low located near Haida Gwaii.

Marine Weather Statement

Issued 10:16 AM PDT 31 August 2026 A deepening low pressure system from the Gulf of Alaska will drop
south to Haida Gwaii on Tuesday. There is still a lot of uncertainty
in its intensity and track. Gale force southerly winds are expected
ahead of the system over waters west of Vancouver Island, central
waters and parts of Hecate Strait beginning Tuesday afternoon.
The waters impacted and the strength of the winds may change in the
coming forecast updates as the track of the low evolves. This is the
first fall storm of the season.

Pacific - Georgia Basin Area

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Marine Weather for Canada

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