Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 19 October 2018

Today Tonight and Saturday.

Wind southeast 5 to 15 knots becoming light this afternoon then increasing to northwest 10 to 20 near midnight. Wind northwest 10 to 20 Saturday.

Showers overnight and Saturday morning. Fog patches dissipating early this afternoon. Fog patches this evening.

Extended Forecast

Issued 04:00 AM PDT 19 October 2018
Sunday Wind light becoming southeast 10 to 15 knots in the afternoon.
Monday Wind southeast 10 to 15 knots increasing to southeast 20 to 30.
Tuesday Wind southeast 15 to 25 knots diminishing to southeast 5 to 15.

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Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM PDT 19 October 2018 Today Tonight and Saturday At 10:30 a.m. PDT today low 970 mb located 300 miles west of the
Alaska panhandle.

At 10:30 a.m. PDT today cold front located on a line north-south
over Langara.
By 11:00 p.m. PDT tonight dissipating cold front located on a line
north-south over Cape Scott.

At 5:00 a.m. PDT Saturday quasi-stationary ridge located on a line
northeast-southwest over Queen Charlotte Sound.

Marine Weather Statement

Issued 10:19 AM PDT 19 October 2018 An intense low pressure system will move northward towards Alaska
today while the associated cold front moves onto the North Coast.
The cold front will weaken as pushes southward later this afternoon
and this evening eventually dissipating near Cape Scott overnight.
On Saturday, a ridge of high pressure will build over queen
Charlotte sound.

Gale force southeasterlies will prevail over most northern and
central waters today ahead of the cold front. Winds will shift to
moderate to strong west or southwest behind it, with gale force
southwesterlies forecast over the northern offshore waters.

On Saturday, strong to gale force southerlies will persist over the
northern offshore waters. Light to moderate winds will prevail
elsewhere under the ridge.

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