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West Coast Haida Gwaii - northern half

Warnings

Forecast

Marine Forecast

Issued 04:00 AM PST 15 December 2025

Today Tonight and Tuesday.

Gale warning in effect.

Wind southwest 25 to 35 knots increasing to southwest 35 to 45 early this evening then diminishing to southwest 25 to 35 late overnight. Wind diminishing to southwest 15 to 25 Tuesday morning then becoming variable 10 to 20 near noon Tuesday. Wind increasing to northwest 20 to 30 Tuesday afternoon then becoming northwest 25 to 35 Tuesday evening.

Showers. Risk of thunderstorms this morning and late this afternoon and tonight.

Waves

Issued 04:00 AM PST 15 December 2025
Today Tonight and Tuesday. Seas 4 to 6 metres subsiding to 4 this afternoon then building to 5 to 7 this evening. Seas subsiding to 4 Tuesday morning.

Extended Forecast

Issued 04:00 AM PST 15 December 2025
Wednesday Wind westerly 20 to 30 knots becoming southwest 25 to 35 in the afternoon.
Thursday Wind southwest 25 to 35 knots becoming westerly 20 to 30 late in the day.
Friday Wind northwest 10 to 20 knots.

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Map of Pacific - North Coast marine weather areas Masset Municipal Airport South Moresby - 46147 Bonilla Island Bella Coola Airport North Hecate Strait - 46183 Bella Bella Airport North Nomad - 46184 Sandspit Airport South Hecate Strait - 46185 Rose Spit Nanakwa Shoal - 46181 Langara Island Kindakun Rocks West Sea Otter - 46204 Cape St.James West Dixon Entrance - 46205 Sartine Island West Moresby - 46208 East Dellwood - 46207 Middle Nomad - 46004 South Nomad - 46036 Cathedral Point Prince Rupert Airport Lucy Islands Lightstation Holland Rock Dixon Entrance Central - 46145 Grey Islet Cumshewa Island
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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 08:59 AM PST 15 December 2025

'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 AM PST 15 December 2025 Today Tonight and Tuesday At 4:00 a.m. PST today departing low 967 mb located northwest
of Bowie.

At 4:00 a.m. PST today cold front located from the Central Coast
to Explorer.
By 4:00 p.m. PST today departing cold front located over BC
interior.

At 4:00 p.m. PST today trough located west of Bowie.
By 4:00 a.m. PST Tuesday departing trough located over the North
Coast.

At 10:00 a.m. PST Tuesday low 992 mb located over Bowie.
By 4:00 p.m. PST Tuesday low 984 mb located over Haida Gwaii.

Marine Weather Statement

Issued 3:40 AM PST 15 December 2025 As the low located northwest of Bowie moves away from the region,
storm force southwesterlies over Northern Bowie will ease this
morning.

A cold front will slide southeastward across the southern waters
today and then move inland this evening. Southerly gales are expected
ahead of the front, while strong to gale force westerly winds will
develop in its wake.

Another trough will cross northern waters tonight bringing gale to
storm force southwesterlies.

The active weather pattern continues on Tuesday with a broad low
producing southerly to westerly gales across most marine regions.

Pacific - North Coast Area

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Marine Weather for Canada

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