Johnstone Strait
Forecast
Marine Forecast
Issued 05:25 PM PDT 08 July 2025
Tonight and Wednesday.
Strong wind warning in effect.
Wind northwest 15 to 25 knots becoming northwest 15 early Wednesday morning then increasing to northwest 15 to 25 near noon Wednesday.
Rain changing to scattered showers near midnight and ending Wednesday morning. Fog patches forming after midnight and dissipating Wednesday morning.
Extended Forecast
Issued 04:00 PM PDT 08 July 2025
Thursday
Wind northwest 15 to 25 knots diminishing to
northwest 10 in the morning.
Friday
Wind northwest 10 knots increasing to northwest
15 to 25.
Saturday
Wind northwest 15 to 25 knots.
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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 5:25 PM PDT 08 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 4:00 PM PDT 8 July 2025 Tonight and Wednesday At 4:00 p.m. PDT today frontal system located on a linenortheast-southwest over central Vancouver Island.
By 4:00 a.m. PDT Wednesday weakening frontal system located on a
line northeast-southwest over southern Vancouver Island.
By 9:30 p.m. PDT tonight building ridge located over the offshore
waters.
Marine Weather Statement
Issued 3:26 PM PDT 8 July 2025 A ridge of high pressure will rebuild offshore on Wednesday. Westerlywinds through central and eastern sections of Juan de Fuca Strait
will rise to marginal gales late Wednesday as the ridge strengthens.
Pacific - South Coast Area
- Bowie - southern half
- Central Coast from McInnes Island to Pine Island
- Explorer - northwestern half
- Explorer - southeastern half
- 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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