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Marine Forecast

Issued 07:00 AM MDT 20 October 2021

Today Tonight and Thursday.

Gale warning in effect.

Wind southeast 20 knots increasing to southeast 30 this morning and to southeast 35 near noon. Wind diminishing to south 30 this evening and to south 20 late overnight. Wind diminishing to south 15 Thursday afternoon and to light Thursday evening.

Temperatures near plus 2.


Issued 07:00 AM MDT 20 October 2021
Today Tonight and Thursday. Seas 1 to 2 metres building to 2 to 3 near noon then subsiding to 2 near midnight. Seas subsiding to 1 Thursday evening.

Extended Forecast

Issued 07:00 AM MDT 20 October 2021
Friday Wind light increasing to southeast 20 knots in the afternoon and to southeast 25 late in the day.
Saturday Wind southeast 30 knots diminishing to southeast 20 late in the day.
Sunday Wind southeast 15 knots.

Ice Forecast

Issued 10:00 AM EDT 20 October 2021 Today Tonight and Thursday Open water. 

[ Canadian Ice Service ]

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Weather Conditions

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

Ice Forecasts

Issued 10:00 AM EDT 20 October 2021 Today Tonight and Thursday

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

Open water.


Warnings (In effect)

Gale warning in effect


Issued 1:39 PM MDT 20 October 2021

'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 or Weatheradio stations.


Technical Marine Synopsis

Issued 6:30 AM MDT 20 October 2021 Today Tonight and Thursday At 1200 UTC Wednesday weakening low 991 mb located at 87N 144W.
By 0000 UTC Friday dissipating low 1015 mb located at 86N 104W.

At 1200 UTC Wednesday ridge located over 76N 120W extending
By 0000 UTC Friday ridge located over 81N 119W extending westward.

At 1200 UTC Wednesday building trough located on a line east-west
over Arctic Coast of Alaska.
By 0000 UTC Friday trough located over Arctic Coast of Alaska to
Banks Island.

Mackenzie - Mackenzie River Area

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