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Mackenzie

Warnings

Forecast

Marine Forecast

Issued 07:00 AM MDT 17 August 2026

Today Tonight and Tuesday.

Wind northeast 15 knots veering to east 15 to 20 this morning then becoming west 15 to 20 early Tuesday morning except northeast 15 to 20 over northern sections. Wind becoming west 20 to 25 late Tuesday morning except northeast 15 to 20 over northern sections. Wind increasing to northwest 25 to 30 Tuesday afternoon except north 15 to 20 over northern sections. Wind becoming northwest 20 to 25 Tuesday evening.

Showers beginning this evening changing to rain Tuesday afternoon. Fog banks becoming fog patches Tuesday morning and dissipating Tuesday evening.

Waves

Issued 07:00 AM MDT 17 August 2026
Today Tonight and Tuesday. Seas 1 metre or less building to 1 to 2 Tuesday afternoon then subsiding to 1 Tuesday evening.

Extended Forecast

Issued 07:00 AM MDT 17 August 2026
Wednesday Wind northwest 15 to 20 knots diminishing to light in the morning then becoming north 10 to 15 in the afternoon.
Thursday Wind north 10 to 15 knots veering to east 20 late in the day.
Friday Wind east 20 knots diminishing to northwest 10 to 15 late in the day.

Ice Forecast

Issued 10:00 AM EDT 17 August 2026 Today Tonight and Tuesday Special ice warning in effect. 2 tenths first-year ice including a trace of old ice except 5 tenths old ice in the extreme northwestern section. Unusual presence of first-year ice in the southern section today and continuing Tuesday. 

[ 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 10:00 AM EDT 17 August 2026 Today Tonight and Tuesday

Ice Edge

First ice edge estimated from Brodeur Peninsula near 7154N 9004W to
7115N 9200W to Nunavut near 7037N 9210W. Sea ice southeast of the
ice edge.

Second ice edge estimated from Nunavut near 6857N 11659W to 7030N
11900W to Victoria Island near 7136N 11854W. Sea ice west of the ice
edge.

Third ice edge estimated from Victoria Island near 6901N 10147W to
6930N 10000W to 7030N 9900W to Prince of Wales Island near 7214N
10128W. Sea ice west of the ice edge.

Fourth ice edge estimated from Prince of Wales Island near 7244N
9630W to Somerset Island near 7320N 9538W. Sea ice northwest of the
ice edge.

Ice Coverage

Special ice warning in effect.

2 tenths first-year ice including a trace of old ice except 5 tenths
old ice in the extreme northwestern section.
Unusual presence of first-year ice in the southern section today and
continuing Tuesday.

Warnings

Warnings (In effect)

Special ice warning in effect

Mackenzie

Issued 10:00 AM EDT 17 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 17 August 2026 Today Tonight and Tuesday At 1200 UTC Monday low 992 mb located at 80N 113W.
By 0000 UTC Wednesday low 989 mb located at 84N 144W.

At 1200 UTC Monday trough located on a line east-west over the
northern Northwest Territories.
By 0000 UTC Wednesday trough from 995 mb low located from 71N 127W
to 71N 114W then to 66N 114W.

Mackenzie - Mackenzie River Area

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Marine Weather for Canada

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