West Coast Haida Gwaii - northern half

Forecast

Marine Forecast

Issued 10:30 AM PST 18 December 2017

Today Tonight and Tuesday.

Gale warning in effect.

Wind southwest 10 to 20 knots diminishing to light this afternoon then increasing to north 10 to 15 near midnight. Wind increasing to north 15 to 25 late overnight and to north 25 to 35 near noon Tuesday.

A few showers ending near midnight.

Waves

Issued 04:00 AM PST 18 December 2017
Today Tonight and Tuesday. Seas 3 to 4 metres.

Extended Forecast

Issued 04:00 AM PST 18 December 2017
Wednesday Wind north 30 to 40 knots diminishing to north 20 to 30 in the afternoon.
Thursday Wind north 15 to 25 knots.
Friday Wind northeast 15 to 25 knots veering to east 25 to 30.

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Map of Pacific - North Coast marine weather areas Middle Nomad - 46004 South Nomad - 46036 Dixon Entrance Central - 46145 South Moresby - 46147 Nanakwa Shoal - 46181 North Hecate Strait - 46183 North Nomad - 46184 South Hecate Strait - 46185 West Sea Otter - 46204 West Dixon Entrance - 46205 East Dellwood - 46207 West Moresby - 46208 Sartine Island Cape St.James Kindakun Rocks Langara Island Masset Municipal Airport Rose Spit Sandspit Airport Bella Bella Airport Bella Coola Airport Cathedral Point Cumshewa Island Grey Islet Holland Rock Lucy Islands Lightstation Prince Rupert Airport Bonilla Island
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

West Coast Haida Gwaii - northern half

Issued 10:30 AM PST 18 December 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 PST 18 December 2017 Today Tonight and Tuesday At 4:00 p.m. PST today deepening low 1015 mb located at 43N 135W.
By 4:00 p.m. PST Tuesday low 1000 mb located over northern
Washington State.

At 10:30 a.m. PST today weakening low 1008 mb located north
of Bowie.
By 4:00 p.m. PST today weakening low 1014 mb located over northern
Bowie.

Marine Weather Statement

Issued 10:15 AM PST 18 December 2017 A low pressure centre will form southwest of the Explorer region
This afternoon and then move northeastward and deepen over Northern
Washington state Tuesday afternoon. Strong easterly winds will
develop ahead of the low tonight and shift to strong to local
Gale force westerlies in its wake.

A trough of low pressure extending northwards from the low will
strengthen during the day on Tuesday with gale force northerly
Winds developing over most offshore and outer coastal waters as well
as mainland inlets.

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