Johnstone Strait

Forecast

Marine Forecast

Issued 09:30 PM PST 20 November 2018

Tonight and Wednesday.

Gale warning in effect.

Wind southeast 15 to 25 knots increasing to southeast 30 to 40 late overnight then diminishing to southeast 15 to 25 near noon Wednesday. Wind becoming southeast 15 early Wednesday evening.

Rain beginning after midnight.

Extended Forecast

Issued 04:00 PM PST 20 November 2018
Thursday Wind southeast 20 knots increasing to southeast 25 to 35 in the morning then diminishing to southeast 10 to 20 in the afternoon.
Friday Wind southeast 5 to 15 knots increasing to northwest 15 to 25.
Saturday Wind light increasing to southeast 25 to 35 knots.

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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 9:30 PM PST 20 November 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 9:30 PM PST 20 November 2018 Tonight and Wednesday At 9:30 p.m. PST tonight quasi-stationary frontal system located
from the Central Coast to Explorer.

At midnight PST tonight low located over southwestern Explorer.
By 1:00 p.m. PST Wednesday departing low located over southern
Hecate Strait.

At 1:00 p.m. PST Wednesday building ridge located on a line
north-south over Vancouver Island.
By 4:00 a.m. PST Thursday ridge located over BC interior.

At 9:30 p.m. PST Wednesday approaching frontal system located west
of Explorer.

Marine Weather Statement

Issued 3:47 PM PST 20 November 2018 A front stretching from the Central Coast to Explorer will
Remain there through the evening. Strong to gale force
southeasterlies will continue to be generated along the front.

The stalled front will re-intensify tonight as a low approaches
Vancouver Island from the south. The low will combine with the
stalled front and this combined system will move eastwards into the
inner South Coast Wednesday afternoon and into the British Columbia
Interior by Wednesday evening. Strong to gale force southeasterlies
will continue to be generated along the front through the entire
period.

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