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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 09:30 PM PDT 15 May 2026

Tonight and Saturday.

Strong wind warning in effect.

Wind northwest 10 to 20 knots becoming northwest 15 to 25 Saturday afternoon.

Showers ending overnight. Showers Saturday. Fog patches forming late overnight and dissipating Saturday morning.

Extended Forecast

Issued 04:00 PM PDT 15 May 2026
Sunday Wind northwest 15 to 25 knots diminishing to northwest 5 to 15 in the morning then increasing to northwest 20 to 25 late in the day.
Monday Wind variable 5 to 15 knots increasing to northwest 20 late in the day.
Tuesday Wind northwest 20 knots increasing to northwest 35 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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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Johnstone Strait

Issued 9:30 PM PDT 15 May 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. 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 15 May 2026 Tonight and Saturday At 9:30 p.m. PDT tonight trough located on a line north-south over
Vancouver Island.
By 11:00 a.m. PDT Saturday departing trough located over Washington
State.

At 9:30 p.m. PDT tonight ridge located west of the offshore waters.
By midnight PDT Saturday ridge located over the Alaska panhandle
to Explorer.

At 9:30 p.m. PDT Saturday approaching frontal system located west
of Bowie.

Marine Weather Statement

Issued 9:13 PM PDT 15 May 2026 A trough over the southern waters will continue to generate
northwesterly gale force winds over Explorer this evening. Winds will
ease overnight as the trough moves southward.

In addition, the trough will create conditions favourable for
waterspout development over the Strait of Georgia, Howe Sound, and
west coast Vancouver Island from now through Saturday midday.

A ridge of high pressure will build over the offshore waters
Saturday. As the ridge approaches the coast, gale force westerlies
will develop through Juan de Fuca Strait Saturday afternoon before
easing to strong westerlies overnight Saturday.

Pacific - South Coast Area

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Marine Weather for Canada

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