West Coast Haida Gwaii

Forecast

Marine Forecast

Issued 10:30 AM PDT 27 April 2015

Today Tonight and Tuesday

Storm warning in effect.

Wind southeasterly 10 to 20 knots except southeast 35 to 45 over southern sections early this evening. Wind becoming southeast 35 to 45 this evening then increasing to southeast 45 to 55 after midnight. Wind veering to southwest 50 to 60 late overnight then diminishing to southwest 35 to 45 Tuesday morning. Wind diminishing to southwest 25 to 35 Tuesday evening.

Periods of rain.

Waves

Issued 04:00 AM PDT 27 April 2015

West Coast Haida Gwaii - northern half

Today Tonight and Tuesday Seas 3 to 4 metres subsiding to 3 overnight then building to 5 near noon Tuesday. Seas subsiding to 3 Tuesday evening.

West Coast Haida Gwaii - southern half

Today Tonight and Tuesday Seas 3 to 4 metres building to 6 Tuesday morning then subsiding to 4 Tuesday evening.

Extended Forecast

Issued 04:00 AM PDT 27 April 2015
Wednesday Wind south 20 to 30 knots.
Thursday Wind west 25 to 35 knots becoming south 20 to 30 late in the day.
Friday Wind southwest 20 to 30 knots diminishing to west 15 to 20 late in the day.

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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

Issued 10:30 AM PDT 27 April 2015

'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 PDT 27 April 2015 Today Tonight and Tuesday At 10:30 a.m. PDT today quasi-stationary low 990 mb located over
the northern Gulf of Alaska.

At 11:00 p.m. PDT tonight deepening low 988 mb located over
northwestern Explorer.
By 11:00 a.m. PDT Tuesday departing low 980 mb located over the
southern Alaska panhandle.

At 11:00 p.m. PDT tonight cold front located on a line north-south
over central Explorer.
By noon PDT Tuesday departing cold front located over the Lower
Mainland.

Marine Weather Statement

Issued 10:37 AM PDT 27 April 2015 A 990 millibar low in the Northern Gulf of Alaska will slowly weaken
today. A second low will deepen rapidly as it moves northward toward
Explorer today, across Haida Gwaii tonight and eventually move
rapidly up the Alaska Panhandle Tuesday.
Strong to gale force southeasterlies ahead of the second low will
reach storm force tonight over most central and northern waters
As the low approaches. Winds will shift rapidly to gale to storm
force westerly in its wake by Tuesday morning with local hurricane
force winds expected over parts of Explorer and Queen Charlotte
Sound. Winds will remain moderate to strong over the far south.

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