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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.

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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Map of Pacific - South Coast marine weather areas Vancouver Harbour Sechelt East Dellwood - 46207 Squamish Airport Powell River Airport Sand Heads Lightstation Discovery Island Georgia Strait - 46303 Vancouver Int'l Airport Cape St.James Tsawwassen Ferry Terminal English Bay – 46304 Point Atkinson Herbert Island Bella Bella Airport West Vancouver Bella Coola Airport Cathedral Point Campbell River Airport South Nomad - 46036 Malahat Sentry Shoal - 46131 Race Rocks Lightstation Kelp Reefs Esquimalt Harbour Saturna Island South Brooks - 46132 Sheringham Point University of Victoria Halibut Bank - 46146 Victoria Gonzales Victoria Int'l Airport Ballenas Islands South Moresby - 46147 Estevan Point Howe Sound - Pam Rocks Grief Point La Perouse Bank - 46206 Tofino Airport Solander Island Sartine Island Port Alberni West Sea Otter - 46204 Comox Airport Sisters Islets Port Hardy Airport South Hecate Strait - 46185 Nanaimo Airport Fanny Island Entrance Island
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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 waters
tonight 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.

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