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Johnstone Strait

Forecast

Marine Forecast

Issued 09:30 PM PDT 20 May 2024

Tonight and Tuesday.

Gale warning in effect.

Wind northwest 15 to 20 knots diminishing to light near midnight then increasing to northwest 15 early Tuesday morning. Wind increasing to northwest 20 near noon Tuesday and to northwest 25 to 35 early Tuesday evening.

Rain ending Tuesday afternoon.

Extended Forecast

Issued 04:00 PM PDT 20 May 2024
Wednesday Wind northwest 25 to 35 knots becoming northwest 25 in the morning then diminishing to northwest 15 late in the day.
Thursday Wind light becoming northwest 15 knots late in the day.
Friday Wind light becoming northwest 15 knots late in the day.

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Weather Conditions

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Map of Pacific - Georgia Basin marine weather areas Sentry Shoal - 46131 Halibut Bank - 46146 La Perouse Bank - 46206 Georgia Strait - 46303 English Bay – 46304 Discovery Island Esquimalt Harbour Kelp Reefs Malahat Race Rocks Lightstation Saturna Island Sheringham Point University of Victoria Victoria Gonzales Victoria Int'l Airport Ballenas Islands Campbell River Airport Comox Airport Entrance Island Fanny Island Nanaimo Airport Sisters Islets Estevan Point Port Alberni Tofino Airport Grief Point Howe Sound - Pam Rocks Powell River Airport Sechelt Squamish Airport Point Atkinson Sand Heads Lightstation Tsawwassen Ferry Terminal Vancouver Int'l Airport Vancouver Harbour West Vancouver
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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 PDT 20 May 2024

'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 2024 Tonight and Tuesday At 9:30 p.m. PDT tonight departing ridge located southwest of
Vancouver Island.

At 9:30 p.m. PDT tonight trough located on a line
northeast-southwest over the Central Coast.
By 4:00 p.m. PDT Tuesday trough located on a line north-south over
Vancouver Island.

At 4:00 a.m. PDT Tuesday building ridge located west of Bowie.
By 9:30 p.m. PDT Tuesday ridge located on a line north-south
over Bowie.

Marine Weather Statement

Issued 9:14 PM PDT 20 May 2024 A ridge of high pressure just southwest of Vancouver Island will
continue to track south this evening. Moderate to strong northwest
winds are occurring ahead of this ridge. As the ridge of high
pressure moves south, marginal westerly gales will funnel through
Juan de Fuca Strait tonight.

A trough will dig south in Explorer tonight with a building ridge
west of Bowie. This combination will strengthen the northwesterly
winds to gale force across the southern waters late Tuesday.

Pacific - Georgia Basin Area

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