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Forecast

Marine Forecast

Issued 07:00 AM MDT 19 August 2026

Today Tonight and Thursday.

Wind north 25 knots diminishing to northwest 15 this afternoon and to light late overnight. Wind light Thursday.

Fog patches dissipating early this afternoon. Fog patches reforming Thursday evening.

Temperatures plus 1 rising to plus 5 Thursday evening.

Waves

Issued 07:00 AM MDT 19 August 2026
Today Tonight and Thursday. Over open water seas 1 to 2 metres subsiding to 1 or less late overnight.

Extended Forecast

Issued 07:00 AM MDT 19 August 2026
Friday Wind light increasing to southeast 25 knots in the morning then diminishing to southeast 15 to 20 in the afternoon.
Saturday Wind southeast 15 to 20 knots diminishing to southeast 10 to 15 late in the day.
Sunday Wind east 15 knots.

Ice Forecast

Issued 10:00 AM EDT 19 August 2026 Today Tonight and Thursday 4 tenths old ice except 8 tenths old ice in the extreme northwestern 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 10:00 AM EDT 19 August 2026 Today Tonight and Thursday

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 6948N 12206W to 7040N
11958W 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

4 tenths old ice except 8 tenths old ice in the extreme northwestern
section.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM MDT 19 August 2026 Tonight and Thursday At 0000 UTC Thursday dissipating low 992 mb located at 85N 164W.

At 0000 UTC Thursday building ridge located off Arctic Coast
of Alaska.
By 0000 UTC Friday high 1020 mb located over Banks Island.

Mackenzie - Mackenzie River Area

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Marine Weather for Canada

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