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Johnstone Strait

Forecast

Marine Forecast

Issued 09:30 PM PST 07 December 2025

Tonight and Monday.

Gale warning in effect.

Wind southeast 10 to 20 knots increasing to southeast 20 to 30 near midnight then becoming southeast 25 to 35 late Monday morning. Wind becoming northwest 20 to 30 late Monday afternoon then diminishing to northwest 10 to 20 Monday evening.

Showers changing to rain near midnight and ending Monday afternoon.

Extended Forecast

Issued 04:00 PM PST 07 December 2025
Tuesday Wind southwest 20 knots backing to southeast 10 to 20 in the morning then increasing to southeast 20 to 30 late in the day.
Wednesday Wind northwest 25 knots diminishing to light late in the day.
Thursday Wind easterly 10 to 20 knots increasing to southeast 20 to 30.

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Weather Conditions

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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 07 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 7 December 2025 Tonight and Monday At 7:00 a.m. PST Monday low 976 mb located west of Bowie.
By 7:00 p.m. PST Monday departing low 982 mb located over the
southern Alaska panhandle.

Marine Weather Statement

Issued 9:09 PM PST 7 December 2025 Remnants of a trough over the northern and central waters will
continue to give southwesterly gales tonight.

A frontal system moving through on Monday will bring storm force
westerlies across Bowie and the northern waters. Hurricane force
gusts are possible with this system, especially over Bowie and west
coast Haida Gwaii northern sections. Southwesterly gales will develop
across Explorer and the southern waters on Monday with this frontal
system, spreading into Juan de Fuca Strait late Monday. Over the
Strait of Georgia southeasterly gales are expected Monday afternoon.

Pacific - South Coast Area

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