West Coast Haida Gwaii - northern half


Marine Forecast

Issued 04:00 PM PST 22 December 2014

Tonight and Tuesday

Storm warning in effect.

Wind southeast 20 to 30 knots increasing to southeast 30 to 40 early this evening and to southeast 45 to 55 late this evening. Wind diminishing to south 25 to 35 late overnight then increasing to southwest 40 to 50 early Tuesday morning. Wind diminishing to northwest 30 to 40 Tuesday afternoon.

Rain changing to a few showers late Tuesday morning.


Issued 04:00 PM PST 22 December 2014
Today Tonight and Tuesday Seas 4 metres building to 6 this evening and to 8 late Tuesday morning. Seas building to 10 Tuesday afternoon then subsiding to 7 Tuesday evening.

Extended Forecast

Issued 05:23 PM PST 22 December 2014
Wednesday Wind northwest 25 to 35 knots diminishing to northwest 15 to 25 in the morning.
Thursday Wind northwest 15 to 25 knots.
Friday Wind northwest 15 knots increasing to northwest 15 to 25 late in the day.

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Weather Conditions

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Ice Conditions

There is no ice forecast issued for this area.


Warnings (In effect)

Storm warning in effect

West Coast Haida Gwaii - northern half

Issued 4:00 PM PST 22 December 2014

'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.


Technical Marine Synopsis

Issued 4:00 PM PST 22 December 2014 Tonight and Tuesday At 4:00 p.m. PST today intensifying warm front located off Explorer.
By midnight PST tonight warm front located on a line north-south
over Cape St. James.

At 4:00 p.m. PST today deepening low 996 mb located 300 miles west
of Cape St. James.
By 4:00 a.m. PST Tuesday weakening low 976 mb located 240 miles
west of Langara.

At 4:00 p.m. PST Tuesday weakening low 984 mb located near Langara.
By midnight PST Tuesday weakening low 998 mb located over BC

Marine Weather Statement

Issued 5:28 PM PST 22 December 2014 A 994 millibar low west of Southern Bowie will quickly deepen to 974
millibar overnight while moving northeastward. The low will move
across Northern Bowie Tuesday while weakening and will locate near
Prince Rupert by Tuesday evening with centre pressure about 988

A strong warm front associated with the low currently lies over the
offshore waters will move across the northern and central water
tonight. Gale to storm force southeast winds will develop ahead of
the front. Winds will shift to storm force southwest over northern
and central waters tonight except for hurricane force over Bowie near
the low. Winds will eventually ease to strong to gale force northwest
Tuesday night as the low moves inland and weakens.

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