Johnstone Strait

Warnings

Forecast

Marine Forecast

Issued 04:00 PM PDT 21 June 2018

Tonight and Friday.

Gale warning in effect.

Wind northwest 25 to 35 knots diminishing to northwest 10 to 20 Friday morning then increasing to northwest 20 to 30 Friday afternoon.

Risk of thunderstorms late this afternoon and early this evening. Chance of showers Friday.

Extended Forecast

Issued 04:00 PM PDT 21 June 2018
Saturday Wind northwest 15 to 25 knots.
Sunday Wind northwest 5 to 15 knots increasing to northwest 20 to 30 late in the day.
Monday Wind northwest 20 to 30 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 4:00 PM PDT 21 June 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 21 June 2018 Tonight and Friday At 4:00 p.m. PDT today ridge located on a line north-south over
northern Explorer.
By 5:00 a.m. PDT Friday dissipating ridge located on a line
north-south over Cape Scott.

At 4:00 p.m. PDT today trough located over Bowie.
By 5:00 a.m. PDT Friday weakening trough located on a line
north-south over Queen Charlotte Sound.

At 11:00 p.m. PDT Friday approaching ridge located over Bowie.

Marine Weather Statement

Issued 3:57 PM PDT 21 June 2018 Onshore flow remains over the coast tonight as a trough of
Low pressure deepens over the BC Interior and a weak ridge of high
pressure persists offshore.

Westerly gale force winds will persist through Juan de Fuca Strait
tonight and ease early Friday morning then redevelop Friday evening.

Northwest winds will reach marginal gale force through Johnstone
Strait tonight and ease Friday morning.

Elsewhere, winds will remain light to moderate.

Pacific - South Coast Area

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Marine Weather for Canada

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