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Amundsen

Warnings

Forecast

Marine Forecast

Issued 07:00 AM MDT 21 July 2026

Today Tonight and Wednesday.

Wind light increasing to northeast 15 knots this morning and to southeast 25 Wednesday morning.

Fog patches dissipating this afternoon.

Waves

Issued 07:00 AM MDT 21 July 2026
Today Tonight and Wednesday. Over open water seas 1 metre or less.

Extended Forecast

Issued 07:00 AM MDT 21 July 2026
Thursday Wind southeast 25 knots diminishing to south 15 in the morning then backing to southeast 20 in the afternoon.
Friday Wind southeast 20 knots becoming northwest 20 late in the day.
Saturday Wind north 25 knots backing to northwest 30 late in the day.

Ice Forecast

Issued 10:00 AM EDT 21 July 2026 Today Tonight and Wednesday Special ice warning in effect. 4 tenths first-year ice including a trace of old ice except 9 plus tenths first-year ice including 1 tenth old ice in the extreme northern section. Unusual presence of old ice in the extreme northern section today and continuing Wednesday. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 21 July 2026 Today Tonight and Wednesday

Ice Coverage

Special ice warning in effect.

4 tenths first-year ice including a trace of old ice except 9 plus
tenths first-year ice including 1 tenth old ice in the extreme
northern section.
Unusual presence of old ice in the extreme northern section today
and continuing Wednesday.

Warnings

Warnings (In effect)

Special ice warning in effect

Amundsen

Issued 10:00 AM EDT 21 July 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 21 July 2026 Today Tonight and Wednesday At 1200 UTC Tuesday departing high 1026 mb located at 75N 134W.

By 0000 UTC Thursday approaching low 1005 mb located at 70N 141W.

Mackenzie - Mackenzie River Area

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Marine Weather for Canada

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