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CT4

Warnings

Forecast

Marine Forecast

Issued 05:00 PM EDT 11 September 2026

Tonight and Saturday.

Wind east 25 knots diminishing to east 15 near noon Saturday.

Periods of snow changing to periods of freezing rain or snow this evening then to periods of snow Saturday afternoon.

Temperatures near minus 1.

Waves

Issued 05:00 PM EDT 11 September 2026
Tonight and Saturday. Over open water seas 1 to 2 metres subsiding to 1 or less Saturday afternoon.

Extended Forecast

Issued 05:00 PM EDT 11 September 2026
Sunday Wind east 15 knots backing to north 15 in the morning then increasing to north 20 late in the day.
Monday Wind north 20 knots backing to west 15 late in the day.
Tuesday Wind west 15 knots increasing to west 30 late in the day.

Ice Forecast

Issued 10:00 AM EDT 11 September 2026 Today Tonight and Saturday 2 tenths old ice except 9 tenths old ice in the eastern section. 

[ Canadian Ice Service ]

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Weather Conditions

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Map of Arctic - Western Arctic marine weather areas Resolute Airport Thomsen River Ulukhaktok Airport Cape Providence Nangmagvik Lake Komakuk Beach Taloyoak Airport Cape Stallworthy Stefansson Island Mould Bay Naujaat Rea Point Pond Inlet Airport Isachsen Igloolik Airport Sanirajak Airport Grise Fiord Airport Gateshead Island Kugluktuk Airport Little Chicago Storm Hills Liverpool Bay Bathurst Inlet Tuktoyaktuk Airport Pelly Island Paulatuk Airport Norman Wells Airport Sachs Harbour Airport Keats Point Inuvik Airport Tulita Airport Fort Good Hope Airport Cape Parry Airport Aklavik Airport Shingle Point Airport Fort Ross Arctic Bay Cambridge Bay Airport CFS Alert Croker River Shepherd Bay Airport Herschel Island Cape Liverpool Cape Peel West Kugaaruk Airport Gjoa Haven Airport Eureka Airport Hat Island
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buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 11 September 2026 Today Tonight and Saturday

Ice Edge

First ice edge estimated from Nunavut near 6928N 12029W to 7013N
11934W to Banks Island near 7105N 12306W. Sea ice west of the ice
edge.

Second ice edge estimated from Banks Island near 7147N 12026W to
Victoria Island near 7150N 11906W. 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 northwest of the
ice edge.

Ice Coverage

2 tenths old ice except 9 tenths old ice in the eastern section.

Warnings

Warnings (In effect)

Special marine warning in effect

CT4

Issued 2:39 PM MDT 11 September 2026 Periods of freezing rain will continue today.

The freezing rain will persist this evening and end Saturday afternoon.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 AM MDT 11 September 2026 Today Tonight and Saturday At 1200 UTC Friday trough from 986 mb low located from 72N 175W
to 70N 136W.
By 0000 UTC Sunday trough from 993 mb low located from 73N 163W
to 72N 120W.

Arctic - Western Arctic Area

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Marine Weather for Canada

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