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West Coast Haida Gwaii - northern half

Warnings

Forecast

Marine Forecast

Issued 10:30 AM PST 13 December 2025

Today Tonight and Sunday.

Storm warning in effect.

Wind southwest 30 to 40 knots diminishing to south 15 to 25 early this evening then increasing to south 25 to 35 late overnight. Wind backing to southeast 35 to 45 Sunday morning then becoming southeast 40 to 50 near noon Sunday. Wind diminishing to southerly 25 to 35 Sunday afternoon.

Rain changing to showers Sunday evening. Visibility 1 mile or less in precipitation.

Waves

Issued 04:00 AM PST 13 December 2025
Today Tonight and Sunday. Seas 2 to 3 metres building to 3 to 4 this morning and to 3 to 5 near noon. Seas subsiding to 3 to 4 early this evening and to 2 to 3 late overnight then building to 3 to 4 Sunday morning. Seas building to 4 to 6 near noon Sunday.

Extended Forecast

Issued 04:00 AM PST 13 December 2025
Monday Wind southwest 20 to 30 knots becoming southwest 25 to 35 in the afternoon.
Tuesday Wind southwest 15 to 25 knots.
Wednesday Wind west 25 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)

Storm warning in effect

West Coast Haida Gwaii - northern half

Issued 10:30 AM PST 13 December 2025

'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 10:30 AM PST 13 December 2025 Today Tonight and Sunday At 10:30 a.m. PST today departing low 986 mb located over
northeastern Bowie.

At 10:30 a.m. PST today frontal system located from Queen Charlotte
Sound to Explorer.
By 4:00 p.m. PST today weakening frontal system located from the
Central Coast to Explorer.

At 7:00 p.m. PST tonight trough located west of Explorer.
By 7:00 a.m. PST Sunday weakening trough located over Hecate Strait.

At 7:00 a.m. PST Sunday frontal system located west of Bowie.
By 4:00 p.m. PST Sunday intensifying frontal system located from
Haida Gwaii to Explorer.

Marine Weather Statement

Issued 10:32 AM PST 13 December 2025 A low pressure system over Bowie this morning will track
northeastward into the Southern Alaska Panhandle by late this
afternoon. South to southwest gale force winds will spread across the
northern waters west of Haida Gwaii today.

A weakening frontal system over Queen Charlotte Sound will move
toward the Central Coast this afternoon. Southerly gales are
Expected over the central waters and the northern portion of the
inner South Coast today.

A trough will cross Southern Bowie and Northern Explorer this
evening, reaching Hecate Strait early Sunday morning. Gale to locally
storm force southwesterlies are expected to develop over the offshore
waters this evening, then spread across the central and northern
waters overnight.

Another frontal system will move over Bowie Sunday morning and reach
Haida Gwaii by afternoon, spreading gale to locally storm force
southeasterly winds. This front will then intensify from Explorer
Sunday afternoon, with winds ahead of the front increasing to storm
force, possibly reaching hurricane force over Hecate Strait Sunday
evening.

Pacific - North Coast Area

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