Johnstone Strait


Marine Forecast

Issued 04:00 PM PST 12 November 2018

Tonight and Tuesday.

Gale warning in effect.

Wind southeast 30 to 40 knots tonight and Tuesday.

Periods of rain beginning late overnight.

Extended Forecast

Issued 04:00 PM PST 12 November 2018
Wednesday Wind southeast 30 to 40 knots diminishing to southerly 20 in the morning and to variable 5 to 15 in the afternoon.
Thursday Wind southeast 15 to 25 knots diminishing to southerly 5 to 15 late in the day.
Friday Wind southeast 5 to 15 knots.

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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 (In effect)

Gale warning in effect

Johnstone Strait

Issued 4:00 PM PST 12 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.


Technical Marine Synopsis

Issued 4:00 PM PST 12 November 2018 Tonight and Tuesday At 4:00 p.m. PST today frontal system located over western Bowie.
By 9:30 p.m. PST tonight weakening frontal system located over
Haida Gwaii.

At 4:00 p.m. PST today deepening low located southwest of Explorer.
By 4:00 a.m. PST Tuesday low 993 mb located west of Haida Gwaii.

Marine Weather Statement

Issued 3:34 PM PST 12 November 2018 A frontal system located over the western sections of Bowie this
afternoon will move eastward crossing Haida Gwaii this evening.
Meanwhile a developing low well offshore this afternoon will deepen
rapidly tonight as it tracks towards the west coast of Haida Gwaii.

Strong to gale force southeasterly winds have developed over northern
and central waters and off Northwestern Vancouver island this
afternoon as the front approaches. The gales will persist through
this evening then rise to gale to storm force southeasterly overnight
as the low approaches.

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