Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 31 March 2015

Today Tonight and Wednesday

Wind northwest 10 to 15 knots.

A few showers with a risk of thunderstorms.

Extended Forecast

Issued 04:00 AM PDT 31 March 2015
Thursday Wind northwest 15 to 25 knots diminishing to light in the morning then increasing to southeast 15 to 25 in the afternoon.
Friday Wind southeast 25 to 35 knots diminishing to southeast 10 to 20.
Saturday Wind southeast 10 to 20 knots.

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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (Ended)

Strong wind warning ended

Johnstone Strait

Issued 10:30 AM PDT 31 March 2015
Synopsis

Technical Marine Synopsis

Issued 10:30 AM PDT 31 March 2015 Today Tonight and Wednesday At 10:30 a.m. PDT today low 998 mb located 300 miles southwest of
the Alaska panhandle.
By 5:00 a.m. PDT Wednesday weakening low 1012 mb located over the
northern Alaska panhandle.

At 10:30 a.m. PDT today trough located on a line north-south
over Bowie.
By 8:00 p.m. PDT tonight departing trough located over the North
Coast.

At 8:00 a.m. PDT Wednesday building ridge located on a line
north-south over Bowie.
By 8:00 p.m. PDT Wednesday ridge located over Cape Scott.

Marine Weather Statement

Issued 10:16 AM PDT 31 March 2015 Moderate to strong westerlies will prevail over the South Coast
today. Marginal westerly gales are expected this afternoon through
Juan de Fuca Strait. A weak trough of low pressure will move through
the North Coast today bringing strong southerlies ahead of it and
strong westerlies in behind. Westerly gales are expected over the far
north tonight as a low pressure centre heads towards the Alaska
Panhandle.

On Wednesday, winds will ease over most areas as a ridge of high
pressure builds along the coast. Strong to gale force southerlies
will develop over the northern offshore waters by Wednesday afternoon
as the next trough approaches.

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