Johnstone Strait
Forecast
Marine Forecast
Issued 10:30 AM PST 04 December 2025
Today Tonight and Friday.
Wind southeast 5 to 15 knots increasing to southeast 20 to 30 this evening then diminishing to light Friday evening.
Showers changing to rain near midnight. Visibility 1 mile or less in rain.
Strong wind warning program has ended for the season.
Extended Forecast
Issued 04:00 AM PST 04 December 2025
Saturday
Wind southwest 10 to 20 knots backing to
southeast 10 to 20 in the afternoon.
Sunday
Wind southeast 20 to 30 knots veering to
southwest 15 to 25.
Monday
Wind southeast 30 knots becoming west 30 late
in the day.
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM PST 4 December 2025 Today Tonight and Friday At 4:00 p.m. PST today frontal system located off Bowie.By 4:00 a.m. PST Friday departing frontal system located on a line
northwest-southeast over eastern Queen Charlotte Sound.
At 4:00 a.m. PST Friday low 998 mb located over western Bowie.
By 4:00 p.m. PST Friday low 996 mb located over Hecate Strait.
Marine Weather Statement
Issued 10:28 AM PST 4 December 2025 An approaching frontal system will track across the offshore waterstonight and onto the mainland coast Friday morning. Ahead of the
front, strong to gale force southeast winds will develop over
offshore waters this evening and spread to northern and central
waters tonight.
In its wake, winds will shift to southwest gales over northern and
central waters and reach storm force westerlies over offshore areas.
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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