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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 09:30 PM PDT 09 August 2026

Tonight and Monday.

Strong wind warning in effect.

Wind northwest 20 to 30 knots diminishing to northwest 15 to 20 late overnight then increasing to northwest 20 to 25 Monday afternoon.

Periods of drizzle and fog banks overnight and Monday morning.

Extended Forecast

Issued 04:00 PM PDT 09 August 2026
Tuesday Wind northwest 5 to 15 knots increasing to northwest 20 to 30 in the afternoon.
Wednesday Wind northwest 15 to 25 knots becoming northwest 20 to 30 late in the day.
Thursday Wind northwest 5 to 15 knots increasing to northwest 15 to 25 late in the day.

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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 9:30 PM PDT 09 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 9:30 PM PDT 9 August 2026 Tonight and Monday At 9:30 p.m. PDT tonight ridge located on a line northeast-southwest
over Explorer.
By 10:00 a.m. PDT Monday ridge located on a line northeast-southwest
over southern Explorer.

At 9:30 p.m. PDT tonight trough located over Bowie.
By 9:30 p.m. PDT Monday trough located over northern Explorer.

Marine Weather Statement

Issued 9:23 PM PDT 9 August 2026 A ridge of high pressure offshore will produce strong to gale force
westerlies along the central and eastern sections of Juan de Fuca
strait this evening and again late Monday.

Pacific - South Coast Area

Another Region

Marine Weather for Canada

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