Johnstone Strait


Marine Forecast

Issued 04:00 PM PDT 20 May 2019

Tonight and Tuesday.

Strong wind warning in effect.

Wind southeast 15 to 25 knots becoming northwest 10 to 20 this evening then increasing to northwest 20 to 30 near noon Tuesday.

Showers ending early Tuesday morning.

Extended Forecast

Issued 04:00 PM PDT 20 May 2019
Wednesday Wind northwest 10 to 20 knots increasing to northwest 20 to 30 in the afternoon.
Thursday Wind northwest 10 to 20 knots increasing to northwest 20 to 30.
Friday Wind northwest 10 to 15 knots increasing to northwest 20 to 30.

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Weather Conditions

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Ice Conditions

There is no ice forecast issued for this area.


Warnings (In effect)

Strong wind warning in effect

Johnstone Strait

Issued 4:00 PM PDT 20 May 2019

'Strong' winds of 20 to 33 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.


Technical Marine Synopsis

Issued 4:00 PM PDT 20 May 2019 Tonight and Tuesday At 4:00 p.m. PDT today low located west of Explorer.
By 4:00 a.m. PDT Tuesday low located off Oregon Coast.

At 4:00 p.m. PDT today quasi-stationary trough located over BC

At 4:00 a.m. PDT Tuesday quasi-stationary ridge located west of
the offshore waters.

Marine Weather Statement

Issued 3:46 PM PDT 20 May 2019 A frontal system west of Explorer this afternoon will approach the
Oregon coast tonight. In the wake of the system, strong to gale force
northerly winds will develop tonight over the southern half of Bowie.

A ridge of high pressure will build offshore on Tuesday. Strong to
gale force northwesterly winds will develop west of Vancouver Island
on Tuesday afternoon.

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