Johnstone Strait
Forecast
Marine Forecast
Issued 10:30 AM PDT 12 July 2025
Today Tonight and Sunday.
Strong wind warning in effect.
Wind northwest 15 to 20 knots increasing to northwest 20 to 30 this afternoon then diminishing to northwest 15 to 20 late overnight. Wind increasing to northwest 20 to 25 Sunday morning and to northwest 25 to 30 Sunday afternoon.
Periods of drizzle beginning overnight changing to scattered showers Sunday morning and ending Sunday afternoon. Fog patches forming after midnight and dissipating Sunday morning.
Extended Forecast
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
Warnings (In effect)
Strong wind warning in effect
Johnstone Strait
Issued 1:34 PM PDT 12 July 2025'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.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM PDT 12 July 2025 Today Tonight and Sunday At 10:30 a.m. PDT today ridge located from the Alaska panhandleto Explorer.
By 10:30 a.m. PDT Sunday ridge located from the North Coast to
Explorer.
At 10:30 a.m. PDT today frontal system located over western Bowie.
By 10:30 a.m. PDT Sunday weakening frontal system located over
the North Coast.
Marine Weather Statement
Issued 10:26 AM PDT 12 July 2025 A frontal system is approaching the northern waters today. Marginalsoutherly gales may briefly develop through Northern Hecate Strait
and Dixon Entrance East this afternoon.
A ridge of high pressure will strengthen again on Sunday, generating
northwesterly gales over West Vancouver Island and westerly gales
over Central and Eastern Juan de Fuca Strait in the afternoon.
Pacific - Georgia Basin Area
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