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West Coast Haida Gwaii - northern half

Forecast

Marine Forecast

Issued 10:30 AM PST 11 December 2023

Today Tonight and Tuesday.

Storm warning in effect.

Wind south 20 to 30 knots becoming southeast 25 to 35 this afternoon then increasing to southeast 35 to 45 this evening. Wind increasing to southeast 45 to 55 after midnight then becoming southeast 50 to 60 Tuesday afternoon. Wind diminishing to southwest 35 to 45 Tuesday evening.

Periods of drizzle changing to rain this afternoon. Visibility 1 mile or less in rain.

Waves

Issued 04:00 AM PST 11 December 2023
Today Tonight and Tuesday. Seas 2 to 3 metres building to 3 to 4 this evening and to 5 to 7 late overnight. Seas building to 6 to 8 Tuesday afternoon.

Extended Forecast

Issued 04:00 AM PST 11 December 2023
Wednesday Wind southwest 35 knots backing to south 30 to 40 in the afternoon.
Thursday Wind south 40 to 50 knots diminishing to southwest 25 late in the day.
Friday Wind southwesterly 10 to 20 knots.

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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 11 December 2023

'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 11 December 2023 Today Tonight and Tuesday At 10:30 a.m. PST today weakening ridge located over Cape St. James
extending southward.
By 4:00 p.m. PST today dissipating ridge located over Explorer
extending southward.

At 10:30 a.m. PST today frontal system located over the Gulf
of Alaska.
By 4:00 a.m. PST Tuesday frontal system located on a line
northeast-southwest over northern Bowie.

At 4:00 a.m. PST Tuesday intensifying low 980 mb located west of
the offshore waters.
By 4:00 p.m. PST Tuesday low 964 mb located northwest of Bowie.

Marine Weather Statement

Issued 10:28 AM PST 11 December 2023 A front northwest of Bowie will stall today bringing southwesterly
gales over Northern Bowie.

A low pressure system will approach the northern waters late today.
Gale to storm force southerlies will develop over most northern
waters this evening and spread to central waters on Tuesday.

Another vigorous system will reach Haida Gwaii late Tuesday,
spreading storm force southerly winds across the northern and central
waters, with hurricane force southerlies over Hecate Strait and
Dixon Entrance. Winds will veer to southwesterly gales behind the
system Tuesday night.

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