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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 04:00 PM PDT 20 October 2021

Tonight and Thursday.

Storm warning in effect.

Wind southeast 20 to 30 knots increasing to southeast 35 this evening and to southeast 50 late overnight. Wind diminishing to southeast 35 Thursday evening.

Periods of rain.

Extended Forecast

Issued 04:00 PM PDT 20 October 2021
Friday Wind southeast 15 to 25 knots increasing to southeast 25 to 35 late in the day.
Saturday Wind southeast 25 to 35 knots diminishing to southeast 10 to 20.
Sunday Wind southeast 10 to 20 knots increasing to southeast 20 to 30.

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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)

Storm warning in effect

Johnstone Strait

Issued 4:00 PM PDT 20 October 2021

'Storm' force winds of 48 to 63 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 4:00 PM PDT 20 October 2021 Tonight and Thursday At 4:00 p.m. PDT today weakening ridge located from Prince Rupert
to Tofino.

At 9:30 p.m. PDT tonight intensifying frontal system located
off Explorer.
By 4:00 p.m. PDT Thursday frontal system located on a line
northwest-southeast over Haida Gwaii.

At 4:00 p.m. PDT Thursday low 968 mb located over northern Explorer.

Marine Weather Statement

Issued 4:12 PM PDT 20 October 2021 An approaching system will track across the offshore waters on
Thursday and lie over Haida Gwaii late in the day. Ahead of the
system, gale to storm force southeasterlies will develop over waters
west of Vancouver Island this evening then spread to central and
northern waters overnight into Thursday morning. Additionally, winds
will increase to hurricane force Thursday morning near the headlands
of West Coast Vancouver Island North and Western Queen Charlotte
Sound.

Seas of 8 to 10 metres can be expected on Thursday across parts of
Explorer, west coast Vancouver Island, Queen Charlotte Sound, and
west coast Haida Gwaii.

Pacific - Georgia Basin Area

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