Johnstone Strait

Forecast

Marine Forecast

Issued 04:00 AM PST 11 December 2017

Today Tonight and Tuesday.

Gale warning in effect.

Wind southeast 15 to 25 knots increasing to southeast 25 to 35 near noon then diminishing to southeast 15 to 25 late this evening. Wind diminishing to southeast 5 to 15 Tuesday morning.

A few showers beginning near midnight and ending Tuesday morning. Fog banks dissipating near noon Tuesday.

Extended Forecast

Issued 04:00 AM PST 11 December 2017
Wednesday Wind southeast 5 to 15 knots increasing to southeast 15 to 25 in the afternoon.
Thursday Wind southeast 15 to 25 knots diminishing to northwest 5 to 15.
Friday Wind northwest 5 to 15 knots increasing to northwest 15 to 25.

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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 04:00 AM PST 11 December 2017

'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 4:00 AM PST 11 December 2017 Today Tonight and Tuesday At 4:00 a.m. PST today quasi-stationary ridge located over BC
interior.

At 4:00 a.m. PST today frontal system located on a line north-south
over Bowie.
By 4:00 a.m. PST Tuesday dissipating frontal system located over
Hecate Strait.

At 10:00 a.m. PST today trough located west of Explorer.
By 4:00 p.m. PST today trough located over Explorer.

At 4:00 a.m. PST Tuesday frontal system located west of Bowie.
By 4:00 p.m. PST Tuesday frontal system located on a line
north-south over Bowie.

Marine Weather Statement

Issued 3:53 AM PST 11 December 2017 A front will remain on a line north-south over west of Haida
Gwaii today. Marginal gale force southerly winds will prevail over
most central and northern waters. The front is forecast to
Intensifty tonight as it makes its way through the coast, with
Strong to gale force southeasterlies expected ahead of the frontal
passage until early Tuesday morning.

Strong to marginal gale force southeasterly winds will also develop
over parts of the inner south coastal waters this afternoon and
evening as a trough of low pressure crosses the central waters.

Another front will approach the offshore waters Tuesday morning.
Gale force southerly winds will develop over most northern waters on
Tuesday ahead of the front.

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