Johnstone Strait

Forecast

Marine Forecast

Issued 09:30 PM PDT 22 October 2017

Tonight and Monday.

Gale warning in effect.

Wind southeast 5 to 15 knots increasing to southeast 15 to 25 late overnight and to southeast 30 to 40 Monday morning.

Rain beginning late overnight.

Extended Forecast

Issued 04:00 PM PDT 22 October 2017
Tuesday Wind southeast 15 to 25 knots becoming southeast 20 to 30 late in the day.
Wednesday Wind southeast 20 to 30 knots becoming northwest 20 to 30.
Thursday Wind northwest 5 to 15 knots.

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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 9:30 PM PDT 22 October 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 9:30 PM PDT 22 October 2017 Tonight and Monday At 9:30 p.m. PDT tonight building ridge located over the South
Coast.

At 4:00 a.m. PDT Monday deepening low 994 mb located southwest
of Bowie.
By 5:00 p.m. PDT Monday low 991 mb located over the Alaska
panhandle.

Marine Weather Statement

Issued 9:24 PM PDT 22 October 2017 A deepening low will approach Bowie from the southwest tonight to
reach the Alaska Panhandle as a 991 millibar low Monday afternoon.
Ahead of the low, winds will rise to southerly gales offshore
overnight, and to storm force southerlies Monday morning over the
northern and central waters. Winds will shift to gale force
westerlies in the wake of the low then ease to strong Monday
Evening. The associated front will remain over the central
Waters Monday night with southerly gales persisting.

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