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Johnstone Strait


Marine Forecast

Issued 10:30 AM PST 30 November 2023

Today Tonight and Friday.

Wind southeast 15 knots diminishing to light near noon then increasing to southeast 15 this evening. Wind increasing to southeast 15 to 25 after midnight then becoming southeast 15 Friday morning. Wind increasing to southeast 20 to 30 Friday evening.

Periods of rain.

Extended Forecast

Issued 04:00 AM PST 30 November 2023
Saturday Wind northwest 10 to 20 knots diminishing to light in the morning then becoming southeast 15 late in the day.
Sunday Wind southeast 25 to 35 knots diminishing to southeast 10 to 20.
Monday Wind southeast 5 to 15 knots increasing to southeast 25 to 35.

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Weather Conditions

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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
buoy Buoy
land station Land Station
Ice Conditions

There is no ice forecast issued for this area.


No watches or warnings in effect.


Technical Marine Synopsis

Issued 10:30 AM PST 30 November 2023 Today Tonight and Friday At 10:30 a.m. PST today cold front located from Hecate Strait to
Cape Scott.
By 4:00 p.m. PST today dissipating frontal system located from
the Central Coast to Vancouver Island.

At 4:00 p.m. PST today frontal system located west of Bowie.
By 7:00 a.m. PST Friday departing frontal system located from
Hecate Strait to the Central Coast then to Vancouver Island.

At 10:30 a.m. PST Friday frontal system located west of Bowie.
By 4:00 p.m. PST Friday frontal system located from Haida Gwaii
to Explorer.

Marine Weather Statement

Issued 10:19 AM PST 30 November 2023 A cold front lying north-south from Hecate Strait to the west coast
of Vancouver Island will gradually weaken today. Strong southerlies
along the front will veer to westerly and diminish further today as
the front weakens.

The next frontal system will approach Bowie late this afternoon,
sweep across Bowie and Explorer tonight, then reach the BC coastal
waters by Friday morning. The system will track
Inland by Friday afternoon. Southeast gales will develop ahead of the
system followed by gale force westerlies in its wake.

Another frontal system is expected Friday. The system will make its
way across the offshore waters earlier in the day and then into the
northern and central waters later in the day. Gale force southerlies
ahead of the system will be followed by gale force westerlies in its

Pacific - South Coast Area

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