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Marine Forecast

Issued 07:00 AM MDT 08 August 2020

Today Tonight and Sunday.

Gale warning in effect.

Wind east 20 knots except east 30 over northern sections early this afternoon. Wind becoming east 25 late this afternoon except east 35 to 40 over northern sections. Wind diminishing to southeast 20 this evening then veering to southwest 20 late overnight. Wind veering to west 25 Sunday afternoon.

Rain ending near noon Sunday. Fog patches dissipating overnight.


Issued 07:00 AM MDT 08 August 2020
Today Tonight and Sunday. Seas 2 metres building to 3 near noon then subsiding to 2 this evening.

Extended Forecast

Issued 07:00 AM MDT 08 August 2020
Monday Wind west 20 knots diminishing to light in the morning.
Tuesday Wind light.
Wednesday Wind light becoming east 15 knots late in the day.

Ice Forecast

Issued 10:00 AM EDT 8 August 2020 Today Tonight and Sunday 1 tenth old ice. 

[ 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 8 August 2020 Today Tonight and Sunday

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

1 tenth old ice.


Warnings (In effect)

Gale warning in effect


Issued 07:00 AM MDT 08 August 2020

'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 8 August 2020 Today Tonight and Sunday At 1200 UTC Saturday building ridge from 1019 mb high located over
79N 119W extending westward.
By 0000 UTC Monday ridge from 1028 mb high located over 88N 153W
extending southwestward.

At 1200 UTC Saturday trough from 994 mb low located over 67N 117W
extending westward.
By 0000 UTC Monday trough from 996 mb low located over 72N 125W
extending westward.

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