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Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 18 July 2025

Today Tonight and Saturday.

Strong wind warning in effect.

Wind northwest 20 to 30 knots diminishing to northwest 10 to 20 late overnight then becoming northwest 15 to 25 Saturday evening.

Extended Forecast

Issued 04:00 AM PDT 18 July 2025
Sunday Wind northwest 10 to 20 knots.
Monday Wind northwest 10 to 20 knots diminishing to light.
Tuesday Wind light becoming northwest 5 to 15 knots late in the day.

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Map of Pacific - Georgia Basin marine weather areas West Vancouver Discovery Island English Bay – 46304 Georgia Strait - 46303 Sentry Shoal - 46131 Halibut Bank - 46146 La Perouse Bank - 46206 Howe Sound - Pam Rocks Comox Airport Entrance Island Tsawwassen Ferry Terminal Sand Heads Lightstation Point Atkinson Squamish Airport Sechelt Powell River Airport Campbell River Airport Grief Point Tofino Airport Port Alberni Estevan Point Sisters Islets Nanaimo Airport Fanny Island Race Rocks Lightstation Vancouver Harbour Esquimalt Harbour Kelp Reefs Malahat Saturna Island Vancouver Int'l Airport Sheringham Point University of Victoria Victoria Gonzales Victoria Int'l Airport Ballenas Islands
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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 10:30 AM PDT 18 July 2025

'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 10:30 AM PDT 18 July 2025 Today Tonight and Saturday At 10:30 a.m. PDT today ridge located west of Bowie.
By 8:00 p.m. PDT tonight ridge located over Bowie.

Marine Weather Statement

Issued 10:19 AM PDT 18 July 2025 A ridge of high pressure west of Bowie will slowly move eastwards
And reach Haida Gwaii this evening. Strong northwesterlies west of
Vancouver Island will increase to gale force this afternoon then
weaken to strong overnight.

Westerly winds through Juan de Fuca Strait will also increase to gale
force late this afternoon then ease to moderate to strong early
Saturday morning.

Pacific - Georgia Basin Area

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