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West Coast Haida Gwaii - southern half


Marine Forecast

Issued 04:00 AM PST 23 November 2020

Today Tonight and Tuesday.

Storm warning in effect.

Wind variable 5 to 15 knots increasing to south 20 to 30 early this morning and to southeast 30 to 40 late this morning. Wind veering to southwest 30 to 40 late this afternoon then increasing to northwest 40 to 50 Tuesday afternoon.

Periods of rain.


Issued 04:00 AM PST 23 November 2020
Today Tonight and Tuesday. Seas 3 to 4 metres building to 5 to 7 late this evening and to 7 to 9 after midnight. Seas building to 10 Tuesday morning.

Extended Forecast

Issued 04:00 AM PST 23 November 2020
Wednesday Wind northwest 30 to 40 knots diminishing to variable 10 to 20 in the afternoon then increasing to southeast 25 to 35 late in the day.
Thursday Wind southeast 30 to 40 knots diminishing to north 15 to 25.
Friday Wind northwest 25 to 35 knots diminishing to northwest 15 to 25 late in the day.

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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
Ice Conditions

There is no ice forecast issued for this area.


Warnings (In effect)

Storm warning in effect

West Coast Haida Gwaii - southern half

Issued 04:00 AM PST 23 November 2020

'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.


Technical Marine Synopsis

Issued 4:00 AM PST 23 November 2020 Today Tonight and Tuesday At 4:00 a.m. PST today warm front located over western Bowie.
By 4:00 p.m. PST today warm front located over Hecate Strait.

At 4:00 p.m. PST today cold front located over Langara extending
By 4:00 a.m. PST Tuesday cold front located on a line
northeast-southwest over northern Vancouver Island.

At 4:00 p.m. PST today low 962 mb located over the Gulf of Alaska.
By 4:00 a.m. PST Tuesday low 975 mb located off the Alaska

Marine Weather Statement

Issued 3:45 AM PST 23 November 2020 A warm front will move across Northern Bowie this morning then onto
the North Coast in the evening. Gale to local storm force southeast
winds ahead of the front will shift to gale to storm force
southwesterlies in its wake.

The trailing cold front will move onto Northern Vancouver Island
extending southwestward early Tuesday morning then cross Vancouver
Island during the day. Ahead of the cold front, gale force southeast
winds will develop over the South Coast on Tuesday.

A 960 millibar deep low over the Gulf of Alaska will move to just off
Northern Alaska Panhandle overnight. The low will move southwards on
Tuesday while weakening. This low will generate storm force westerly
winds and very high seas to BC waters tonight and Tuesday. Seas will
build to 10 to 13 metres over Bowie this evening then spread to west
coast Haida Gwaii and Dixon Entrance West overnight. Seas will build
to 8 to 10 metres over central waters on Tuesday and to 6 to 8 metres
over west coast Vancouver Island on Wednesday.

Pacific - South Coast Area

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