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West Coast Haida Gwaii - southern half

Forecast

Marine Forecast

Issued 04:00 PM PDT 20 August 2019

Tonight and Wednesday.

Storm warning in effect.

Wind southeast 40 to 50 knots becoming northwest 40 to 50 early this evening then diminishing to northwest 30 to 40 early Wednesday morning. Wind diminishing to northwest 20 to 30 near noon Wednesday and to northwest 10 to 20 Wednesday evening.

Rain ending late this evening. Visibility as low as 1 mile in rain.

Waves

Issued 04:00 PM PDT 20 August 2019
Today Tonight and Wednesday. Seas 3 to 5 metres building to 5 to 7 this evening then subsiding to 3 to 5 Wednesday afternoon.

Extended Forecast

Issued 04:00 PM PDT 20 August 2019
Thursday Wind south 15 to 25 knots increasing to southeast 30 to 40 in the afternoon.
Friday Wind southeast 30 to 40 knots diminishing to southwest 20 to 30.
Saturday Wind west 15 to 20 knots.

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Weather Conditions

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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 Bonilla Island Cathedral Point Cumshewa Island Grey Islet Holland Rock Lucy Islands Lightstation Prince Rupert Airport
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Storm warning in effect

West Coast Haida Gwaii - southern half

Issued 4:00 PM PDT 20 August 2019

'Storm' force winds of 48 to 63 knots are occurring or expected to occur in this marine area. 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 20 August 2019 Tonight and Wednesday At 4:00 p.m. PDT today frontal system located on a line north-south
over eastern Bowie.
By 4:00 a.m. PDT Wednesday frontal system located on a line
north-south over northern Vancouver Island.

At 4:00 p.m. PDT today low 985 mb located over northern Bowie.
By 8:00 a.m. PDT Wednesday departing low 995 mb located over the
North Coast.

At 4:00 a.m. PDT Wednesday building ridge located west of the
offshore waters.
By 5:00 p.m. PDT Wednesday building ridge located over the offshore
waters.

Marine Weather Statement

Issued 3:59 PM PDT 20 August 2019 The centre of a low pressure system west of Haida Gwaii late this
afternoon will cross Haida Gwaii tonight then cross the north
Coast into the BC Interior on Wednesday morning. The associated front
will swing through the northern and central waters tonight and
Progress across the South Coast overnight and Wednesday morning.

Within the vicinity of the low centre, storm to gale force southeast
winds ahead of it will switch to storm to gale force northwest winds
in its wake. Affected marine regions include the northern and
Central waters.

Gale to storm force southeast winds will accompany the associated
front. The front will weaken to gale to strong southeast winds as it
moves through the South Coast overnight and Wednesday morning.
Strong northwest winds are expected to follow the passage the front.

A ridge of high pressure will build Wednesday after the entire
System moves out of the marine regions. Widespread moderate to
Strong northwest winds are expected for all marine regions except
gale force winds along parts of the west coast of Vancouver Island.

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