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Johnstone Strait

Forecast

Marine Forecast

Issued 04:00 AM PDT 23 July 2019

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind northwest 10 to 20 knots becoming northwest 15 to 25 late this afternoon then diminishing to northwest 5 to 15 overnight. Wind becoming light Wednesday morning then becoming southeast 5 to 15 Wednesday evening.

Showers beginning late this afternoon and ending near midnight. Fog patches dissipating Wednesday afternoon.

Extended Forecast

Issued 04:00 AM PDT 23 July 2019
Thursday Wind southeast 20 to 30 knots diminishing to west 5 to 15 in the afternoon.
Friday Wind west 5 to 15 knots increasing to northwest 15 to 25.
Saturday Wind south 15 knots diminishing to light.

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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 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)

Strong wind warning in effect

Johnstone Strait

Issued 04:00 AM PDT 23 July 2019

'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 4:00 AM PDT 23 July 2019 Today Tonight and Wednesday At 4:00 a.m. PDT today ridge located on a line northeast-southwest
over Tofino.
By 10:30 a.m. PDT today building ridge located on a line north-south
over Cape Scott.

At 4:00 a.m. PDT today low 1012 mb located off Haida Gwaii.
By 4:00 p.m. PDT today low 1012 mb located over northern Bowie.

At 11:00 a.m. PDT Wednesday frontal system located over the
offshore waters.
By 4:00 p.m. PDT Wednesday frontal system located off Haida Gwaii.

Marine Weather Statement

Issued 3:59 AM PDT 23 July 2019 A ridge of high pressure over Explorer will build today. Gale force
westerlies will develop over eastern sections of Juan de Fuca Strait
this afternoon then ease to strong late this evening.

A frontal system will approach northern and offshore waters on
Wednesday. Along the front, gale force southeasterlies will develop
over the offshore waters Wednesday morning then the northern waters
late Wednesday afternoon.

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