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Johnstone Strait

Forecast

Marine Forecast

Issued 04:00 PM PDT 21 March 2025

Tonight and Saturday.

Gale warning in effect.

Wind light increasing to southeast 5 to 15 knots late Saturday morning and to southeast 25 to 35 Saturday evening.

Showers ending near midnight. Rain Saturday afternoon and evening. Visibility as low as 1 mile in rain.

Extended Forecast

Issued 04:00 PM PDT 21 March 2025
Sunday Wind southeast 25 to 35 knots diminishing to southeast 20 late in the day.
Monday Wind southeast 10 to 20 knots.
Tuesday Wind southeast 20 knots.

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

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

Johnstone Strait

Issued 4:00 PM PDT 21 March 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 4:00 PM PDT 21 March 2025 Tonight and Saturday At 4:00 p.m. PDT today building ridge located over Explorer.

At 4:00 a.m. PDT Saturday trough located over the offshore waters.
By 4:00 p.m. PDT Saturday trough located west of Haida Gwaii.

Marine Weather Statement

Issued 3:55 PM PDT 21 March 2025 A developing front over the offshore waters will arrive Saturday
afternoon bringing southeast gales from Haida Gwaii and the North
Coast through the central waters to Explorer region. Gales will
increase to storm force near the headlands of Vancouver Island
Saturday evening. As the front sweeps onto the South Coast it will
bring gales to some inner straits overnight and early Sunday
Morning.

Pacific - South Coast Area

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