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Northumberland Strait - eastern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 17 December 2025

Today Tonight and Thursday.

Wind southwest 20 knots increasing to southwest 30 early this morning then veering to northwest 25 near midnight. Wind backing to west 15 to 20 near noon Thursday then to southwest 25 Thursday evening.

Flurries or showers tonight. Visibility 1 mile or less in precipitation.

Temperatures minus 4 rising to plus 2 this afternoon.

Extended Forecast

Issued 03:00 AM AST 17 December 2025
Friday Wind south 25 knots increasing to south 35 in the morning and to south 50 late in the day.
Saturday Wind south 50 knots diminishing to west 35.
Sunday Wind northwest 25 knots becoming southeast 25.

Ice Forecast

Issued 10:00 AM EST 16 December 2025 Today Tonight and Wednesday Open water except 3 tenths new ice including 1 tenth grey ice along parts of the coasts. 

[ Canadian Ice Service ]

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Map of Atlantic - Newfoundland marine weather areas Eskasoni (First Nations) Heath Point Bonavista Wreckhouse St.Paul Island Winterland Branch Hill Twillingate Stephenville Airport Burgeo St. Lawrence St. John's Int'l Airport St. Anthony Airport Grates Cove Cape Race Grand Étang Sagona Island North Mountain Port aux Basques Ingonish Beach La Scie Ferolle Point Englee Daniel's Harbour Corner Brook Cartwright Airport East Point West Chedabucto Bay – 44489 Blanc-Sablon Airport East Chedabucto Bay – 44488 Cap Whittle Chevery Banquereau - 44139 Charlottetown Airport Mary's Harbour North Cape Natashquan Airport Argentia J.A. Douglas McCurdy Sydney Airport Berry Hill Long Pond Îles de la Madeleine Airport Miscou Island Marticot Island Pool's Island
Legend:
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 16 December 2025 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from 4723N 6136W to 4738N 6112W to 4744N
6124W to 4734N 6159W to 4706N 6212W to 4706N 6147W to 4723N 6136W.
Sea ice within the ice edge.

Second ice edge estimated from Nova Scotia near 4551N 6201W to
Prince Edward Island near 4621N 6211W. Sea ice west of the ice edge.

Third ice edge estimated from Prince Edward Island near 4628N 6231W
to 4640N 6329W to 4736N 6409W to 4904N 6404W to 4925N 6516W to 4916N
6703W to 4956N 6635W to Anticosti Island near 4924N 6336W. Sea ice
west then north of the ice edge.

Fourth ice edge estimated from Anticosti Island near 4945N 6301W to
4946N 5954W to 5106N 5804W to 5035N 5733W to 4818N 5929W to 4731N
5923W to Newfoundland near 4736N 5740W. Sea ice north then east of
the ice edge.

Ice Coverage

Open water except 3 tenths new ice including 1 tenth grey ice along
parts of the coasts.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM AST 17 December 2025 Today Tonight and Thursday At 3:00 a.m. AST today trough located on a line northeast-southwest
over Quebec.
By 3:00 a.m. AST Thursday trough located from Newfoundland to
Georges Bank.

Marine Weather Statement

Issued 2:42 AM AST 17 December 2025 A trough of low pressure over Quebec will move southeast and cross
the marine district today and tonight. Strong to gale force
southwesterlies will develop today ahead of the trough and shift to
strong to gale force northwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for all
waters except Northumberland Strait and Chaleur - Miscou.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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