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Larsen

Warnings

Forecast

Marine Forecast

Issued 05:30 PM EDT 12 September 2026

Tonight and Sunday.

Gale warning in effect.

Wind light increasing to south 15 knots early this evening and to southeast 25 after midnight. Wind increasing to east 35 early Sunday morning then diminishing to northeast 30 early Sunday afternoon.

Rain beginning this evening becoming snow or rain near noon Sunday and ending Sunday afternoon. Visibility 1 mile or less in precipitation.

Waves

Issued 05:30 PM EDT 12 September 2026
Tonight and Sunday. Seas 1 metre or less building to 1 to 2 near midnight.

Extended Forecast

Issued 05:30 PM EDT 12 September 2026
Monday Wind northeast 30 knots diminishing to north 20 in the morning and to light in the afternoon.
Tuesday Wind south 15 knots increasing to northwest 20 late in the day.
Wednesday Wind northwest 20 knots.

Ice Forecast

Issued 10:00 AM EDT 12 September 2026 Today Tonight and Sunday Bergy water. 

[ Canadian Ice Service ]

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Weather Conditions

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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 12 September 2026 Today Tonight and Sunday

Ice Edge

First ice edge estimated from Nunavut near 6921N 11953W to 7012N
11936W to 7036N 12333W to Banks Island near 7157N 12547W. Sea ice
west of the ice edge.

Second ice edge estimated from Banks Island near 7133N 12030W to
Victoria Island near 7138N 11901W. Sea ice north of the ice edge.

Third ice edge estimated from Victoria Island near 7002N 10055W to
7028N 9948W to Prince of Wales Island near 7158N 10017W. Sea ice
northwest of the ice edge.

Fourth ice edge estimated from Prince of Wales Island near 7323N
9708W to Somerset Island near 7326N 9539W. Sea ice north of the ice
edge.

Ice Coverage

Bergy water.

Warnings

Warnings (In effect)

Gale warning in effect

Larsen

Issued 5:30 PM EDT 12 September 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM MDT 12 September 2026 Tonight and Sunday At 0000 UTC Sunday weakening low 995 mb located at 74N 70W.
By 0000 UTC Monday weakening low 1001 mb located at 75N 70W.

At 0000 UTC Sunday low 991 mb located at 71N 106W.
By 0000 UTC Monday low 991 mb located at 68N 98W.

Mackenzie - Mackenzie River Area

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Marine Weather for Canada

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