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Johnstone Strait


Marine Forecast

Issued 10:30 AM PDT 23 October 2021

Today Tonight and Sunday.

Gale warning in effect.

Wind southeast 10 to 20 knots diminishing to light this afternoon then increasing to southeast 5 to 15 this evening. Wind increasing to southeast 15 to 25 after midnight and to southeast 25 to 35 early Sunday morning.

Scattered showers ending this afternoon. Showers Sunday morning and afternoon changing to rain.

Extended Forecast

Issued 04:00 PM PDT 23 October 2021
Monday Wind southeast 35 to 45 knots diminishing to southeast 15 to 25 late in the day.
Tuesday Wind southeast 15 to 25 knots diminishing to south 10 to 15.
Wednesday Wind southwest 20 knots backing to southeast 25 late in the day.

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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)

Gale warning in effect

Johnstone Strait

Issued 10:30 AM PDT 23 October 2021

'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.


Technical Marine Synopsis

Issued 4:00 PM PDT 23 October 2021 Tonight and Sunday At 10:00 p.m. PDT tonight frontal system located southwest of
By 11:00 a.m. PDT Sunday frontal system located west of Vancouver

At 4:00 p.m. PDT Sunday low 952 mb located southwest of Explorer.
By 11:00 p.m. PDT Sunday low 958 mb located over southwestern

Marine Weather Statement

Issued 10:19 AM PDT 23 October 2021 A departing system is currently generating strong to gale
Force southeast winds through the Strait of Georgia. As the system
dissipates the winds will ease this afternoon.

The next system will approach Explorer tonight. A strong front
associated with an exceptionally deep low pressure system will
produce gale to hurricane force easterly winds over the southern
offshore waters Sunday. Through the inner South Coast winds
Will rise gale force southeasterly Sunday.

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