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Johnstone Strait


Marine Forecast

Issued 04:00 AM PDT 19 April 2021

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind light except northeasterly outflow 15 to 25 knots near the mainland inlets. Wind becoming southeast 10 to 20 this morning then diminishing to light this afternoon. Wind increasing to northwest 15 to 25 early this evening then diminishing to light Tuesday morning. Wind increasing to northwest 15 to 25 Tuesday afternoon.

Extended Forecast

Issued 04:00 AM PDT 19 April 2021
Wednesday Wind northwest 10 to 20 knots increasing to northwest 20 to 30 in the afternoon.
Thursday Wind northwest 20 to 30 knots diminishing to northwest 10 to 20.
Friday Wind light.

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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)

Strong wind warning in effect

Johnstone Strait

Issued 04:00 AM PDT 19 April 2021

'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 4:00 AM PDT 19 April 2021 Today Tonight and Tuesday At 4:00 a.m. PDT today building ridge located on a line north-south
over Bowie.
By 5:00 a.m. PDT Tuesday quasi-stationary ridge located on a line
north-south over western Bowie.

At 4:00 a.m. PDT today ridge located over BC interior.
By 10:30 a.m. PDT today weakening ridge located over BC interior.

Marine Weather Statement

Issued 3:59 AM PDT 19 April 2021 A ridge of high pressure over the BC Interior will produce strong to
near gale force northerly outflow winds through mainland inlets
This morning.

Pacific - South Coast Area

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