Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PST 18 December 2014

Today Tonight and Friday

Gale warning in effect.

Wind southeast 25 to 35 knots increasing to southeast 35 to 45 this afternoon then diminishing to southeast 15 to 25 early this evening. Wind increasing to southeast 25 to 35 Friday evening.

Rain beginning near noon changing to a few showers near midnight with risk of thunderstorms.

Extended Forecast

Issued 04:00 AM PST 18 December 2014
Saturday Wind southeast 30 to 40 knots increasing to southeast 40 to 50 in the afternoon then diminishing to southerly 15 to 25 late in the day.
Sunday Wind southerly 15 to 25 knots.
Monday Wind southerly 10 to 20 knots.

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Weather Conditions

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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

GALE WARNING in effect

Johnstone Strait

Issued 10:30 AM PST 18 December 2014

'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 10:30 AM PST 18 December 2014 Today Tonight and Friday At 10:30 a.m. PST today frontal system located west of Haida Gwaii.
By 7:00 p.m. PST tonight weakening frontal system located on a
line north-south over Hecate Strait.

At 4:00 p.m. PST today trough located west of the offshore waters.
By 4:00 a.m. PST Friday trough located on a line northwest-southeast
over the offshore waters.

At 4:00 p.m. PST Friday approaching frontal system located west
of the offshore waters.

Marine Weather Statement

Issued 10:17 AM PST 18 December 2014 An intense frontal system is moving across the BC coast today. Ahead
of the front, storm to hurricane force southeasterlies over northern
and central waters will shift to strong southerlies in its wake.
Strong southeasterlies over the inner South Coast waters will rise to
gale force this afternoon. Very high seas will build, reaching up to
9 metres over northern and central waters.

On Friday a trough of low pressure will track across northern waters.
Ahead of the trough, gale force southeasterlies will develop over the
offshore waters tonight and spread to the North Coast Friday morning.
Winds will shift to strong to gale force southwesterly behind the
trough.

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