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Johnstone Strait


Marine Forecast

Issued 09:30 PM PDT 21 March 2023

Tonight and Wednesday.

Strong wind warning in effect.

Wind northwest 20 to 30 knots diminishing to northwest 5 to 15 late overnight then becoming light Wednesday afternoon. Wind increasing to southeast 10 to 20 Wednesday evening.

Periods of drizzle tonight and Wednesday morning.

Extended Forecast

Issued 04:00 PM PDT 21 March 2023
Thursday Wind southeast 20 to 30 knots becoming northwest 15 to 25 in the afternoon.
Friday Wind northwest 15 to 25 knots.
Saturday Wind northwest 20 to 30 knots.

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Weather Conditions

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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 (In effect)

Strong wind warning in effect

Johnstone Strait

Issued 9:30 PM PDT 21 March 2023

'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 or Weatheradio stations.


Technical Marine Synopsis

Issued 9:30 PM PDT 21 March 2023 Tonight and Wednesday At 9:30 p.m. PDT tonight ridge located on a line northeast-southwest
over Haida Gwaii.
By 9:30 p.m. PDT Wednesday departing ridge located over southern
Vancouver Island.

At 10:30 a.m. PDT Wednesday trough located off Bowie.
By 9:30 p.m. PDT Wednesday trough located on a line
northwest-southeast over eastern Bowie.

Marine Weather Statement

Issued 9:51 PM PDT 21 March 2023 An approaching trough of low pressure will track across the offshore
waters Wednesday evening. Ahead of the trough, strong to gale force
southerly winds will develop west of Haida Gwaii Wednesday afternoon
and then spread to northern and central coastal waters Wednesday

Pacific - South Coast Area

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