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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 10:30 AM PST 13 December 2025

Today Tonight and Sunday.

Gale warning in effect.

Wind southeast 25 to 35 knots becoming southeast 20 to 30 late this evening then increasing to southeast 30 to 40 Sunday afternoon.

Periods of rain.

Extended Forecast

Issued 04:00 AM PST 13 December 2025
Monday Wind southeast 30 to 40 knots diminishing to northwest 15 to 25 in the afternoon then becoming southeast 15 late in the day.
Tuesday Wind southeast 25 to 35 knots diminishing to northwest 10 to 20.
Wednesday Wind southwest 25 knots.

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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

Warnings (In effect)

Gale warning in effect

Johnstone Strait

Issued 10:30 AM PST 13 December 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 PST 13 December 2025 Today Tonight and Sunday At 10:30 a.m. PST today departing low 986 mb located over
northeastern Bowie.

At 10:30 a.m. PST today frontal system located from Queen Charlotte
Sound to Explorer.
By 4:00 p.m. PST today weakening frontal system located from the
Central Coast to Explorer.

At 7:00 p.m. PST tonight trough located west of Explorer.
By 7:00 a.m. PST Sunday weakening trough located over Hecate Strait.

At 7:00 a.m. PST Sunday frontal system located west of Bowie.
By 4:00 p.m. PST Sunday intensifying frontal system located from
Haida Gwaii to Explorer.

Marine Weather Statement

Issued 10:32 AM PST 13 December 2025 A low pressure system over Bowie this morning will track
northeastward into the Southern Alaska Panhandle by late this
afternoon. South to southwest gale force winds will spread across the
northern waters west of Haida Gwaii today.

A weakening frontal system over Queen Charlotte Sound will move
toward the Central Coast this afternoon. Southerly gales are
Expected over the central waters and the northern portion of the
inner South Coast today.

A trough will cross Southern Bowie and Northern Explorer this
evening, reaching Hecate Strait early Sunday morning. Gale to locally
storm force southwesterlies are expected to develop over the offshore
waters this evening, then spread across the central and northern
waters overnight.

Another frontal system will move over Bowie Sunday morning and reach
Haida Gwaii by afternoon, spreading gale to locally storm force
southeasterly winds. This front will then intensify from Explorer
Sunday afternoon, with winds ahead of the front increasing to storm
force, possibly reaching hurricane force over Hecate Strait Sunday
evening.

Pacific - South Coast Area

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