Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 18 October 2017

Today Tonight and Thursday.

Gale warning in effect.

Wind southeast 25 to 35 knots becoming southeast 20 to 30 late this morning then diminishing to southwest 15 early this afternoon. Wind increasing to southeast 20 early this evening then diminishing to southeast 15 early Thursday morning. Wind diminishing to light Thursday evening.

Rain at times heavy changing to a few showers this evening.

Extended Forecast

Issued 04:00 AM PDT 18 October 2017
Friday Wind southeast 10 to 20 knots increasing to southeast 20 to 30 in the afternoon.
Saturday Wind southeast 20 to 30 knots becoming southwest 20 late in the day.
Sunday Wind southwest 20 knots increasing to southeast 20 to 30.

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Weather Conditions

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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)

Gale warning in effect

Johnstone Strait

Issued 2:30 PM PDT 18 October 2017

'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 10:30 AM PDT 18 October 2017 Today Tonight and Thursday At 10:30 a.m. PDT today cold front located on a line
northeast-southwest over northern Vancouver Island.
By 4:00 p.m. PDT today departing cold front located on a line
northeast-southwest over the Lower Mainland.

At 5:30 p.m. PDT today low located west of Bowie.
By 5:00 a.m. PDT Thursday departing low located over Hecate Strait.

Marine Weather Statement

Issued 10:20 AM PDT 18 October 2017 A frontal system has moved across the central and northern waters
this morning. Winds are veering to southwest gales in its wake.

The cold front associated with this system is advancing across
Vancouver Island and gale force southeasterlies are developing over
the South Coast this morning. As the system moves inland this
afternoon, winds will become strong south or southwesterlies in its
wake.

Seas have built to near 7 metres over the northern and central waters
this morning, and will build to near 9 metres over the offshore
waters this evening.

Strong to gale force westerlies will develop tonight as the centre of
this low pressure system will make its way across Southern Bowie into
central waters.

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