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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 09:30 PM PST 13 December 2025

Tonight and Sunday.

Gale warning in effect.

Wind southeast 20 to 30 knots increasing to southeast 30 to 40 late Sunday afternoon.

Periods of rain.

Extended Forecast

Issued 04:00 PM 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 15 to 25 knots becoming northwest 10 to 20.
Wednesday Wind northwest 20 to 30 knots becoming southeast 15 to 25.

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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 9:30 PM 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 9:30 PM PST 13 December 2025 Tonight and Sunday At 9:30 p.m. PST tonight trough located west of Explorer.
By 7:00 a.m. PST Sunday departing 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 9:17 PM PST 13 December 2025 A trough will cross Southern Bowie and Northern Explorer tonight,
reaching Hecate Strait early Sunday morning. Gale to storm force
southwesterlies are expected to develop over the offshore
Waters this evening, and then spread across the central and northern
waters overnight.

Another intensifying frontal system will move over Bowie Sunday
morning and reach Haida Gwaii by afternoon. Ahead of the systerm,
gale to storm force southeasterly winds are expected, while gale to
storm force southwesterly winds will develop in its wake.

Pacific - South Coast Area

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