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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 09:30 PM PDT 20 May 2026

Tonight and Thursday.

Gale warning in effect.

Wind northwest 25 to 35 knots diminishing to northwest 15 to 25 after midnight then increasing to northwest 25 to 35 late Thursday afternoon.

Extended Forecast

Issued 04:00 PM PDT 20 May 2026
Friday Wind northwest 10 to 20 knots increasing to northwest 20 to 30 in the afternoon.
Saturday Wind northwest 5 to 15 knots increasing to northwest 15 to 25 late in the day.
Sunday Wind variable 5 to 15 knots increasing to southeast 20 to 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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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 9:30 PM PDT 20 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 9:30 PM PDT 20 May 2026 Tonight and Thursday At 9:30 p.m. PDT tonight ridge located on a line northeast-southwest
over Cape St. James.
By 4:00 a.m. PDT Thursday weakening ridge located on a line
northeast-southwest over Queen Charlotte Sound.

At 9:30 p.m. PDT tonight trough located off Bowie.
By 10:30 a.m. PDT Thursday weakening trough located on a line
northeast-southwest over Haida Gwaii.

At 4:00 p.m. PDT Thursday building ridge located off Bowie.

Marine Weather Statement

Issued 9:01 PM PDT 20 May 2026 Ahead of a ridge of high pressure, northwesterly gales over Johnstone
Strait and West Vancouver Island will ease overnight and then
redevelop late Thursday afternoon.

Pacific - South Coast Area

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Marine Weather for Canada

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