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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 11:38 AM PDT 18 May 2025

Today Tonight and Monday.

Gale warning in effect.

Wind northwest 15 to 25 knots diminishing to southeast 5 to 15 this afternoon then increasing to southeast 15 to 25 after midnight. Wind increasing to southeast 25 to 35 late overnight then diminishing to southeast 15 to 25 Monday morning. Wind becoming southeast 10 to 20 Monday afternoon.

Showers this morning. Periods of rain overnight and Monday.

Extended Forecast

Issued 04:00 AM PDT 18 May 2025
Tuesday Wind southwest 5 to 15 knots.
Wednesday Wind light becoming northwest 10 to 15 knots late in the day.
Thursday Wind northwest 10 to 15 knots diminishing to light.

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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)

Gale warning in effect

Johnstone Strait

Issued 11:38 AM PDT 18 May 2025

'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 10:30 AM PDT 18 May 2025 Today Tonight and Monday At 10:30 a.m. PDT today ridge located on a line northwest-southeast
over Explorer.
By 5:00 p.m. PDT today departing ridge located on a line north-south
over Vancouver Island.

At 10:30 a.m. PDT today frontal system located over Bowie.
By 4:00 a.m. PDT Monday departing frontal system located from
Hecate Strait to the Central Coast.

At 11:00 p.m. PDT tonight deepening low 998 mb located over Bowie.
By 2:00 p.m. PDT Monday weakening low 1001 mb located over Haida
Gwaii.

Marine Weather Statement

Issued 10:17 AM PDT 18 May 2025 A frontal system is approaching the offshore, northern, and central
waters today. The front will spread gale force southerly or
southeasterly winds beginning near noon along Bowie, then reach the
above mentioned regions by this evening and persist until Monday
morning.

A centre of low pressure associated with the frontal system will move
eastward over Bowie this evening. Westerly gales behind this low will
develop over Explorer tonight before easing to strong Monday morning.

Pacific - South Coast Area

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Marine Weather for Canada

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