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Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 13 April 2021

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind light increasing to northwest 5 to 15 knots late this afternoon and to northwest 15 to 25 Wednesday afternoon.

Extended Forecast

Issued 04:00 AM PDT 13 April 2021
Thursday Wind southeast 5 to 15 knots becoming light in the afternoon then increasing to northwest 10 to 20 late in the day.
Friday Wind northwest 10 to 20 knots becoming southeast 5 to 15.
Saturday Wind northwest 10 to 20 knots becoming southeast 5 to 15.

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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
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 13 April 2021

'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 13 April 2021 Today Tonight and Wednesday At 10:30 a.m. PDT today building ridge located on a line
northeast-southwest over Queen Charlotte Sound.
By 10:30 a.m. PDT Wednesday ridge located on a line
northwest-southeast over Haida Gwaii.

At 4:00 p.m. PDT today cold front located west of Bowie.
By 4:00 a.m. PDT Wednesday weakening cold front located on a line
north-south over western Bowie.

At 10:30 a.m. PDT today quasi-stationary ridge located over BC
interior.

Marine Weather Statement

Issued 10:07 AM PDT 13 April 2021 A cold front from a low moving into the Gulf of Alaska will move
through Bowie tonight and Wednesday. Ahead of the front, southerly
gales will develop over Northern Bowie late this afternoon and ease
Wednesday morning as the front weakens.

Additionally, with a ridge of high pressure over the BC Interior,
marginal gale force northerly outflow winds will develop over Howe
Sound overnight and ease Wednesday morning.

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