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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 04:00 PM PDT 21 May 2026

Tonight and Friday.

Gale warning in effect.

Wind northwest 25 to 35 knots diminishing to northwest 15 to 25 late overnight then increasing to northwest 30 to 40 Friday afternoon.

Periods of drizzle and fog patches overnight and Friday morning.

Extended Forecast

Issued 04:00 PM PDT 21 May 2026
Saturday Wind northwest 15 to 20 knots increasing to northwest 20 to 30 in the afternoon.
Sunday Wind variable 5 to 15 knots increasing to southeast 20 to 30 late in the day.
Monday Wind southeast 20 to 30 knots becoming northwest 15 to 25 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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land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

Johnstone Strait

Issued 6:03 PM PDT 21 May 2026

'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 4:00 PM PDT 21 May 2026 Tonight and Friday At 4:00 p.m. PDT today trough located on a line northeast-southwest
over the North Coast.
By 9:30 p.m. PDT tonight weakening trough located on a line
northeast-southwest over the Central Coast.

At 4:00 p.m. PDT today building ridge located off Bowie.
By 9:30 p.m. PDT Friday ridge located on a line northeast-southwest
over Haida Gwaii.

At 9:30 p.m. PDT Friday approaching trough located west of Bowie.

Marine Weather Statement

Issued 3:48 PM PDT 21 May 2026 Ahead of a ridge of high pressure, northwesterly gales over Johnstone
Strait and West Vancouver Island will develop late this afternoon and
then ease overnight. Winds will redevelop Friday afternoon.

Pacific - South Coast Area

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Marine Weather for Canada

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