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Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 10:30 AM PDT 29 September 2023

Today Tonight and Saturday.

Gale warning in effect.

Wind northwest 5 to 15 knots increasing to northwest 15 to 25 late this afternoon then becoming northwest 15 to 20 after midnight. Wind increasing to northwest 25 to 35 Saturday afternoon then diminishing to northwest 15 to 25 Saturday evening.

Periods of drizzle overnight and Saturday morning. Fog patches forming after midnight and dissipating near noon Saturday.

Extended Forecast

Issued 04:00 AM PDT 29 September 2023
Sunday Wind northwest 10 to 20 knots becoming southeast 10 to 20 in the morning.
Monday Wind southeast 10 to 20 knots becoming northwest 10 to 20.
Tuesday Wind light increasing to south 20 to 30 knots late in the day.

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Map of Pacific - South Coast marine weather areas South Nomad - 46036 Sentry Shoal - 46131 South Brooks - 46132 Halibut Bank - 46146 South Moresby - 46147 South Hecate Strait - 46185 West Sea Otter - 46204 La Perouse Bank - 46206 East Dellwood - 46207 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 Port Hardy Airport Sisters Islets Estevan Point Port Alberni Sartine Island Solander Island Tofino Airport Grief Point Howe Sound - Pam Rocks Powell River Airport Sechelt Squamish Airport Cape St.James Bella Bella Airport Bella Coola Airport Cathedral Point Herbert Island 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 10:30 AM PDT 29 September 2023

'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 29 September 2023 Today Tonight and Saturday At 10:30 a.m. PDT today building ridge located west of the offshore
waters.

At 4:00 a.m. PDT Saturday ridge located on a line north-south
over Bowie.
By 11:00 p.m. PDT Saturday ridge located on a line
northeast-southwest over Queen Charlotte Sound.

At 11:00 a.m. PDT Saturday frontal system located west of Bowie.
By 11:00 p.m. PDT Saturday frontal system located over Bowie.

Marine Weather Statement

Issued 10:16 AM PDT 29 September 2023 A ridge of high pressure continues to build over the offshore waters
today and moves into central waters on Saturday. Northwesterly
marginal gales will develop off West Vancouver Island this evening
and persist through Saturday. Northwesterly marginal gales are also
expected through Johnstone Strait Saturday afternoon.

A frontal system will slide eastward across Bowie Saturday evening.
Ahead of the system, southerly gales are expected over northern
waters.

Pacific - South Coast Area

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Marine Weather for Canada

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