Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 16 August 2017

Today Tonight and Thursday.

Strong wind warning in effect.

Wind light increasing to northwest 25 knots late this afternoon then diminishing to northwest 5 to 15 Thursday morning.

Chance of rain or drizzle late this morning. Chance of showers beginning Thursday evening.

Extended Forecast

Issued 04:00 AM PDT 16 August 2017
Friday Wind variable 5 to 15 knots increasing to northwest 25 to 35 in the afternoon.
Saturday Wind northwest 10 to 20 knots increasing to northwest 20 to 30 late in the day.
Sunday Wind northwest 15 knots increasing to northwest 20 to 30 late in the day.

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Map of Pacific - South Coast marine weather areas Tsawwassen Ferry Terminal 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 Sartine Island Solander Island Tofino Airport Grief Point Powell River Airport Sechelt Cape St.James Bella Bella Airport Bella Coola Airport Cathedral Point Herbert Island Point Atkinson Sand Heads Lightstation Vancouver Harbour Vancouver Int'l Airport West Vancouver Port Alberni Howe Sound - Pam Rocks Squamish Airport
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 16 August 2017

'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 16 August 2017 Today Tonight and Thursday At 10:30 a.m. PDT today quasi-stationary ridge located on a line
northeast-southwest over northwestern Vancouver Island.

At 10:30 a.m. PDT today departing low 1004 mb located over the
northern Alaska panhandle.

At 2:00 p.m. PDT Thursday frontal system located on a line
northeast-southwest over northern Haida Gwaii.
By 11:00 p.m. PDT Thursday weakening frontal system located on a
line northeast-southwest over Queen Charlotte Sound.

Marine Weather Statement

Issued 10:28 AM PDT 16 August 2017 A ridge of high pressure will remain over Vancouver Island today
while a dissipating 1004 millibar low moves into the Northern Alaska
Panhandle. On Thursday, a frontal system will reach Bowie in the
morning and the North Coast near mid-day.

Light to moderate variable winds will prevail for most of the South
Coast today and Thursday. Moderate to strong westerlies through Juan
de Fuca Strait will reach gale force tonight.

Over the North Coast, strong southwesterlies will gradually ease
today as the low moves off. Gale force southeast winds will develop
ahead of the next frontal system and shift to strong west or
southwesterly in its wake.

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