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Hecate Strait - northern half

Forecast

Marine Forecast

Issued 04:00 AM PST 14 December 2025

Today Tonight and Monday.

Storm warning in effect.

Wind southwest 30 to 40 knots increasing to southeast 45 to 55 near noon then diminishing to southwest 10 to 20 near midnight. Wind increasing to southwest 20 to 30 Monday morning then becoming southwest 25 to 35 Monday afternoon. Wind increasing to southwest 35 to 45 Monday evening.

Showers changing to rain this afternoon then to scattered showers near midnight. Visibility 1 mile or less in precipitation.

Waves

Issued 04:00 AM PST 14 December 2025
Today Tonight and Monday. Seas 2 to 3 metres building to 3 to 4 this morning and to 4 to 6 late this afternoon. Seas subsiding to 3 to 4 near midnight and to 2 to 3 late overnight and to 1 to 2 Monday morning. Seas building to 2 to 3 Monday afternoon.

Extended Forecast

Issued 04:00 AM PST 14 December 2025
Tuesday Wind southwest 35 to 45 knots diminishing to west 15 to 25 in the morning.
Wednesday Wind west 15 to 25 knots backing to south 20 to 30.
Thursday Wind south 20 to 30 knots.

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Weather Conditions

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Map of Mackenzie - Mackenzie River marine weather areas Cambridge Bay Airport Inner Whaleback Rocks Hay River/Merlyn Carter Airport Inuvik Airport Fort Simpson Airport Tulita Airport Great Slave Lake North Arm - 45150 Keats Point Łutselk'e Airport Croker River Norman Wells Airport Paulatuk Airport Bathurst Inlet Pelly Island Storm Hills Hat Island Little Chicago Liverpool Bay Yellowknife Airport Wrigley Airport Tuktoyaktuk Airport Komakuk Beach Fort Chipewyan Airport Stony Rapids Airport Uranium City Egg Island Prairie River Thomsen River Sachs Harbour Airport Herschel Island Ulukhaktok Airport Stefansson Island Cape Providence Gateshead Island Shingle Point Airport Aklavik Airport Cape Parry Airport Cape Peel West Fort Good Hope Airport Fort Providence Kugluktuk Airport Great Slave Lake - 45141 Fort Reliance Fort Resolution Airport
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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Storm warning in effect

Hecate Strait - northern half

Issued 04:00 AM PST 14 December 2025

'Storm' force winds of 48 to 63 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 4:00 AM PST 14 December 2025 Today Tonight and Monday At 4:00 a.m. PST today trough located from Bowie to Haida Gwaii.
By 9:00 a.m. PST today departing trough located north of Bowie.

At 9:00 a.m. PST today intensifying frontal system located west
of Bowie.
By 4:00 p.m. PST today frontal system located on a line
northeast-southwest over Haida Gwaii.

At 4:00 a.m. PST Monday frontal system located on a line
northeast-southwest over the Central Coast.
By 4:00 p.m. PST Monday departing frontal system located southeast
of Vancouver Island.

At 4:00 p.m. PST Monday approaching low located west of Bowie.

Marine Weather Statement

Issued 3:36 AM PST 14 December 2025 A trough brings gale to storm force southwesterly winds to northern
and central waters this morning.

An intensifying frontal system offshore moves eastward over the
marine regions today. Ahead of the system, gale to storm force
southeasterly winds are expected, while gale to storm force
southwesterly winds will develop in its wake.

On Monday, this system will move southeastward across the southern
waters with southerly gales ahead of the front and strong to gale
force westerly winds in behind.

The active weather pattern continues as another low approaches Bowie
Monday afternoon spreading gale to storm force southwesterly over the
northern waters.

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