Johnstone Strait
Forecast
Marine Forecast
Issued 09:30 PM PST 06 November 2025
Tonight and Friday.
Strong wind warning in effect.
Wind southeast 20 to 30 knots diminishing to southeast 10 to 20 near midnight and to light early Friday morning. Wind becoming southeast 15 Friday evening.
Rain changing to showers near midnight and ending Friday afternoon.
Extended Forecast
Issued 04:00 PM PST 06 November 2025
Saturday
Wind southeast 20 knots increasing to
southeast 30 to 40 in the afternoon.
Sunday
Wind southeast 30 to 40 knots diminishing to
southeast 20 late in the day.
Monday
Wind light.
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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 9:30 PM PST 06 November 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 9:30 PM PST 6 November 2025 Tonight and Friday At 9:30 p.m. PST tonight departing low 983 mb located over northernVancouver Island.
At 4:00 a.m. PST Friday building ridge located southwest of the
offshore waters.
By 4:00 p.m. PST Friday ridge located on a line north-south over
Vancouver Island.
At 4:00 a.m. PST Saturday intensifying frontal system located over
the western offshore waters.
By 4:00 p.m. PST Saturday frontal system located over eastern Bowie.
Marine Weather Statement
Issued 9:21 PM PST 6 November 2025 A 983 millibar low will move inland after midnight while weakening.In the wake of the low, winds will shift to gale to storm force
westerlies waters this evening then weaken to strong Friday morning.
Another strong front is forecast to arrive Saturday bringing storm
force southerly winds to central and northern waters.
Pacific - South Coast Area
- Bowie - southern half
- Central Coast from McInnes Island to Pine Island
- Explorer
- Haro Strait
- Hecate Strait - southern half
- Howe Sound
- Johnstone Strait
- Juan de Fuca Strait - central strait
- Juan de Fuca Strait - east entrance
- Juan de Fuca Strait - west entrance
- Queen Charlotte Sound - eastern half
- Queen Charlotte Sound - western half
- Queen Charlotte Strait
- Strait of Georgia - north of Nanaimo
- Strait of Georgia - south of Nanaimo
- West Coast Haida Gwaii - southern half
- West Coast Vancouver Island North
- West Coast Vancouver Island South
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