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Warnings

Forecast

Marine Forecast

Issued 07:00 AM MDT 09 August 2026

Today Tonight and Monday.

Wind southwest 15 knots diminishing to light late this morning. Wind light tonight and Monday.

Showers ending Monday afternoon. Fog banks.

Temperatures near zero.

Waves

Issued 07:00 AM MDT 09 August 2026
Today Tonight and Monday. Over open water seas 1 metre or less.

Extended Forecast

Issued 07:00 AM MDT 09 August 2026
Tuesday Wind light.
Wednesday Wind light.
Thursday Wind light.

Ice Forecast

Issued 10:00 AM EDT 9 August 2026 Today Tonight and Monday Special ice warning in effect. 3 tenths first-year ice including 1 tenth old ice except 6 tenths old ice in the western section. Unusual presence of first-year ice in the extreme southeastern section today and continuing Monday. 

[ 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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buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 9 August 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Brodeur Peninsula near 7125N 8957W to 7130N
9036W to 7245N 9049W to 7319N 8909W to 7352N 8811W then northward.
Sea ice west of the ice edge.

Ice Coverage

Special ice warning in effect.

3 tenths first-year ice including 1 tenth old ice except 6 tenths
old ice in the western section.
Unusual presence of first-year ice in the extreme southeastern
section today and continuing Monday.

Warnings

Warnings (In effect)

Special ice warning in effect

Banks

Issued 10:00 AM EDT 09 August 2026

Navigators in this marine area should be on the lookout for hazardous ice conditions and take necessary safety precautions. Please refer to the latest ice forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 AM MDT 9 August 2026 Today Tonight and Monday At 1200 UTC Sunday ridge from 1025 mb high located from 71N 155W
to 83N 118W.
By 0000 UTC Tuesday high 1027 mb located at 78N 122W.

At 1200 UTC Sunday dissipating low 1013 mb located at 74N 130W.

Mackenzie - Mackenzie River Area

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Marine Weather for Canada

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