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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 - South Coast marine weather areas Cape St.James West Vancouver Victoria Gonzales University of Victoria South Brooks - 46132 Sheringham Point Bella Bella Airport Saturna Island Bella Coola Airport Sentry Shoal - 46131 Race Rocks Lightstation Cathedral Point South Nomad - 46036 Kelp Reefs Herbert Island Esquimalt Harbour Point Atkinson Georgia Strait - 46303 Sand Heads Lightstation Tsawwassen Ferry Terminal English Bay – 46304 Vancouver Int'l Airport Vancouver Harbour Discovery Island Entrance Island Sartine Island Fanny Island Comox Airport Nanaimo Airport South Moresby - 46147 Port Hardy Airport Sisters Islets South Hecate Strait - 46185 Estevan Point Campbell River Airport Port Alberni West Sea Otter - 46204 Halibut Bank - 46146 Solander Island Tofino Airport Ballenas Islands Grief Point La Perouse Bank - 46206 Howe Sound - Pam Rocks Powell River Airport Sechelt East Dellwood - 46207 Squamish Airport Victoria Int'l 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 - South Coast Area

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Marine Weather for Canada

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