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Johnstone Strait


Marine Forecast

Issued 09:30 PM PDT 29 October 2020

Tonight and Friday.

Gale warning in effect.

Wind southeast 30 to 40 knots becoming northwest 30 to 40 late overnight then diminishing to northwest 20 to 30 early Friday morning. Wind diminishing to northwest 10 to 20 near noon Friday.

Rain ending Friday morning.

Extended Forecast

Issued 04:00 PM PDT 29 October 2020
Saturday Wind light increasing to southeast 15 knots in the morning and to southeast 25 in the afternoon.
Sunday Wind southeast 25 knots increasing to southeast 35 late in the day.
Monday Wind southeast 35 to 45 knots diminishing 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
Ice Conditions

There is no ice forecast issued for this area.


Warnings (In effect)

Gale warning in effect

Johnstone Strait

Issued 9:30 PM PDT 29 October 2020

'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 9:30 PM PDT 29 October 2020 Tonight and Friday At 9:30 p.m. PDT tonight low 990 mb located over Queen Charlotte
By 4:00 a.m. PDT Friday departing low 994 mb located over BC

At 4:00 a.m. PDT Friday ridge located west of the offshore waters.
By 7:00 p.m. PDT Friday ridge located from the Central Coast
to Explorer.

Marine Weather Statement

Issued 9:22 PM PDT 29 October 2020 An intense low pressure system over Queen Charlotte Sound will move
inland overnight. Ahead of the low, gale to storm force
southeasterlies will veer to gale to storm force northwesterlies in
its wake. A brief period of hurricane force northwest winds can be
expected over Northern Explorer until after midnight.

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