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Forecast

Marine Forecast

Issued 05:30 AM EDT 18 August 2026

Today Tonight and Wednesday.

Wind light becoming east 15 knots late this afternoon. Wind southeast 15 tonight and Wednesday.

Showers tonight and Wednesday. Fog banks.

Temperatures near plus 1.

Waves

Issued 05:30 AM EDT 18 August 2026
Today Tonight and Wednesday. Over open water seas 1 metre or less.

Extended Forecast

Issued 05:30 AM EDT 18 August 2026
Thursday Wind north 15 knots increasing to northwest 30 in the morning.
Friday Wind north 10 to 15 knots becoming light.
Saturday Wind light.

Ice Forecast

Issued 11:00 AM EDT 17 August 2026 Today Tonight and Tuesday 7 tenths first-year ice including 2 tenths old ice except 9 plus tenths first-year ice including 4 tenths old ice in the southwestern section. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 11:00 AM EDT 17 August 2026 Today Tonight and Tuesday

Ice Edge

First ice edge estimated from Baffin Island near 6306N 6444W to
6220N 6213W to 6525N 5846W to Baffin Island near 6636N 6116W. Sea
ice west of the ice edge.

Second ice edge estimated from Somerset Island near 7357N 9035W to
Devon Island near 7432N 8952W. Sea ice west of the ice edge.

Third ice edge estimated from Devon Island near 7454N 7922W to 7554N
7525W to 7625N 7442W then northeastward. Sea ice northwest of the
ice edge.

Ice Coverage

7 tenths first-year ice including 2 tenths old ice except 9 plus
tenths first-year ice including 4 tenths old ice in the southwestern
section.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM MDT 17 August 2026 Tonight and Tuesday At 0000 UTC Tuesday trough from low located from 85N 140W to
76N 98W.
By 0000 UTC Wednesday trough from low located from 84N 140W to
79N 108W.

By 0000 UTC Wednesday approaching trough from 994 mb low located
from 71N 127W to 70N 114W then to 67N 114W.

Mackenzie - Mackenzie River Area

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Marine Weather for Canada

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