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Marine Forecast

Issued 04:00 AM PDT 18 August 2026

Today Tonight and Wednesday.

Wind southwesterly inflow 5 to 15 knots increasing to southwesterly inflow 15 to 25 near noon then diminishing to light late this evening. Wind becoming southwesterly inflow 10 to 15 Wednesday afternoon.

Showers ending near noon.

Extended Forecast

Issued 04:00 AM PDT 18 August 2026
Thursday Wind northeasterly outflow 5 to 15 knots becoming southwesterly inflow 5 to 15 in the afternoon.
Friday Wind northeasterly outflow 10 to 20 knots becoming southwesterly inflow 10 to 20.
Saturday Wind southwesterly inflow 5 to 15 knots increasing to southwesterly inflow 15 to 25.

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Map of Pacific - North Coast marine weather areas Masset Municipal Airport North Hecate Strait - 46183 North Nomad - 46184 South Hecate Strait - 46185 West Sea Otter - 46204 Sartine Island West Dixon Entrance - 46205 East Dellwood - 46207 West Moresby - 46208 Cape St.James Kindakun Rocks Langara Island Middle Nomad - 46004 Rose Spit Sandspit Airport Bella Bella Airport Bella Coola Airport Bonilla Island Cathedral Point Cumshewa Island Grey Islet Holland Rock Lucy Islands Lightstation Prince Rupert Airport Nanakwa Shoal - 46181 Dixon Entrance Central - 46145 South Nomad - 46036 South Moresby - 46147
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Synopsis

Technical Marine Synopsis

Issued 4:00 AM PDT 18 August 2026 Today Tonight and Wednesday At 4:00 a.m. PDT today ridge located over western Bowie.
By 10:30 a.m. PDT today quasi-stationary ridge located on a line
northeast-southwest over Bowie.

At 4:00 a.m. PDT today trough located off Cape Flattery.
By noon PDT today dissipating trough located off Cape Flattery.

Marine Weather Statement

Issued 3:20 AM PDT 18 August 2026 A strengthening ridge of high pressure over Bowie will produce strong
to gale force northwesterly winds over west coast Vancouver Island
Wednesday afternoon through Thursday morning.

Pacific - North Coast Area

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Marine Weather for Canada

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