Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 04:00 PM PDT 16 August 2018

Tonight and Friday.

Gale warning in effect.

Wind northwest 25 to 35 knots diminishing to northwest 15 to 25 late overnight then becoming northwest 20 to 30 Friday afternoon.

Fog banks forming after midnight and dissipating late Friday morning.

Extended Forecast

Issued 04:00 PM PDT 16 August 2018
Saturday Wind northwest 15 to 25 knots increasing to northwest 25 to 35 in the afternoon.
Sunday Wind northwest 10 to 20 knots increasing to northwest 20 to 25 late in the day.
Monday Wind northwest 10 to 20 knots increasing to northwest 20 to 25 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 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

Warnings (In effect)

Gale warning in effect

Johnstone Strait

Issued 4:00 PM PDT 16 August 2018

'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 4:00 PM PDT 16 August 2018 Tonight and Friday At 4:00 p.m. PDT today ridge located on a line north-south over
Haida Gwaii.
By 4:00 a.m. PDT Friday weakening ridge located on a line
north-south over the North Coast.

At 4:00 p.m. PDT today low 1016 mb located west of Bowie.
By 11:00 a.m. PDT Friday dissipating low 1020 mb located near the
Alaska panhandle.

Marine Weather Statement

Issued 3:52 PM PDT 16 August 2018 A ridge of high pressure along a north to south line lies
Over Haida Gwaii. Moderate to strong northwesterlies will
Prevail over most BC waters with marginal gales expected off the
northwestern coast of Vancouver Island and through Johnstone Strait.

The ridge will weaken this evening as it shifts eastward towards
The North Coast. Meanwhile, a weak low pressure system will reach
Northern Bowie on Friday morning.

Marginal gales are also expected for eastern and central
Sections of Juan de Fuca Strait tonight.

Pacific - South Coast Area

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Marine Weather for Canada

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