Johnstone Strait

Forecast

Marine Forecast

Issued 10:30 AM PDT 23 October 2017

Today Tonight and Tuesday.

Gale warning in effect.

Wind southeast 15 to 25 knots increasing to southeast 30 to 40 near noon then diminishing to southeast 20 to 30 late overnight. Wind diminishing to southeast 15 Tuesday afternoon.

Rain changing to chance of drizzle tonight and Tuesday morning.

Extended Forecast

Issued 04:00 AM PDT 23 October 2017
Wednesday Wind southeast 20 to 30 knots becoming northwest 20 to 30 in the morning then diminishing to northwest 15 in the afternoon.
Thursday Wind northwest 5 to 15 knots.
Friday 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 10:30 AM PDT 23 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 10:30 AM PDT 23 October 2017 Today Tonight and Tuesday At 10:30 a.m. PDT today low 995 mb located over northern Bowie.
By 4:00 p.m. PDT today departing low 991 mb located over the
Alaska panhandle.

At 9:30 p.m. PDT tonight quasi-stationary frontal system located
on a line northeast-southwest over southern Hecate Strait.

At 10:30 a.m. PDT Tuesday low 1012 mb located off Bowie.
By 4:00 p.m. PDT Tuesday low 1009 mb located over southern Bowie.

Marine Weather Statement

Issued 10:19 AM PDT 23 October 2017 A deepening low over Bowie will move northeastward to reach the
Alaska Panhandle late this afternoon. Ahead of the low, gale to storm
force southerlies will continue over northern and central waters
today then shift to strong to gale force westerlies in its wake
tonight. The associated front will remain over Southern Hecate Strait
tonight with southerly gales persisting over the central waters.

On Tuesday, another low pressure system will move to lie over Bowie
in the afternoon. Southerly gales will redevelop over the northern
waters ahead of the low.

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