Johnstone Strait

Forecast

Marine Forecast

Issued 09:30 PM PDT 17 April 2015

Tonight and Saturday

Strong wind warning in effect.

Wind northwest 20 to 30 knots diminishing to northwest 10 to 20 early Saturday morning then increasing to northwest 25 early Saturday evening.

Extended Forecast

Issued 04:00 PM PDT 17 April 2015
Sunday Wind northwest 10 to 20 knots increasing to northwest 20 to 30 in the afternoon.
Monday Wind northwest 10 to 20 knots increasing to northwest 20 to 30 late in the day.
Tuesday Wind northwest 25 to 35 knots.

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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Johnstone Strait

Issued 9:30 PM PDT 17 April 2015

'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.

Synopsis

Technical Marine Synopsis

Issued 9:30 PM PDT 17 April 2015 Tonight and Saturday At 9:30 p.m. PDT tonight building ridge located on a line
north-south over Haida Gwaii.
By 5:00 p.m. PDT Saturday ridge located on a line north-south over
Queen Charlotte Sound.

At 11:00 p.m. PDT Saturday approaching frontal system located over
western Bowie.

Marine Weather Statement

Issued 9:29 PM PDT 17 April 2015 A building ridge of high pressure over Haida Gwaii this evening will
move slowly eastward to lie in a north to south line over Queen
Charlotte Sound by Saturday afternoon. A frontal system approaching
from the Pacific will reach Western Bowie Saturday evening.

Moderate to strong northwest winds will prevail over most areas east
of the ridge with gales forecast off the west coast of Vancouver
Island tonight. Winds ease to light near the ridge and back to
moderate to strong southerly in its wake. The approaching front will
bring gale force southerlies over the northern offshore waters and
off Northwestern Haida Gwaii on Saturday.

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