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Northern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 10:00 AM NST 13 December 2025

Today Tonight and Sunday.

Gale warning in effect.

Wind southwest 35 to 45 knots veering to west 35 near noon then diminishing to west 25 Sunday morning. Wind diminishing to west 15 to 20 Sunday afternoon and to light Sunday evening.

Flurries or showers ending this afternoon.

Waves

Issued 06:00 AM NST 13 December 2025
Today Tonight and Sunday. Seas 5 to 7 metres subsiding to 3 to 5 late overnight.

Extended Forecast

Issued 03:00 AM NST 13 December 2025
Monday Wind east 25 to 35 knots veering to south 35 in the afternoon then to southwest 35 to 45 late in the day.
Tuesday Wind west 60 to 70 knots diminishing to west 35 to 45.
Wednesday Wind west 25 knots.

Ice Forecast

Issued 10:00 AM EST 12 December 2025 Today Tonight and Saturday Bergy water.  

[ 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

Northern Grand Banks

Issued 10:00 AM EST 12 December 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Newfoundland near 4934N 5429W to 4941N 5429W
to 5016N 5608W to 5139N 5511W to 5339N 5536W to 5627N 6028W to 5928N
6239W to Labrador near 6018N 6424W. Sea ice west of the ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Flemish

Issued 10:00 AM EST 12 December 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Newfoundland near 4934N 5429W to 4941N 5429W
to 5016N 5608W to 5139N 5511W to 5339N 5536W to 5627N 6028W to 5928N
6239W to Labrador near 6018N 6424W. Sea ice west of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Northern Grand Banks

Issued 1:30 PM EST 12 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 13 Dec estimated from Newfoundland near
4730N 5239W to 4730N 5000W to 5200N 4845W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W then northeastward.

Iceberg Count

No confirmed icebergs except less than 10 icebergs northwest of the
iceberg limit.

Iceberg Bulletin

Flemish

Issued 1:30 PM EST 12 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 13 Dec estimated from Newfoundland near
4730N 5239W to 4730N 5000W to 5200N 4845W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W then northeastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Northern Grand Banks

Issued 10:00 AM NST 13 December 2025

'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.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM NST 13 December 2025 Today Tonight and Sunday At 10:00 a.m. NST today low 957 mb located southeast of Labrador
Sea.
By 10:00 a.m. NST Sunday low 957 mb located southeast of Greenland.

At 8:00 p.m. NST tonight ridge located on a line northwest-southeast
over the Maritimes.
By 8:00 p.m. NST Sunday ridge located from the Grand Banks to
Labrador Coast.

At 8:00 p.m. NST Sunday approaching low 998 mb located south of
Nova Scotia.

Marine Weather Statement

Issued 9:50 AM NST 13 December 2025 An intense low pressure system southeast of the Labrador Sea will
remain nearly stationary today before tracking eastward this evening
to lie southeast of Greenland by Sunday morning. Strong to gale force
southwest to northwesterlies will gradually diminish from west to
east throughout the forecast period as the low slowly pulls away.

Marine interests are advised that gale warnings are in effect for all
waters except Gulf waters.

Marine interests are also advised that freezing spray warnings are in
effect for Northeast Coast and Belle Isle Bank.

Marine interests are also advised that water levels are expected to
exceed the highest astronomical tide with high waves and pounding
surf, impacting some coastal areas of Northeast Coast and East Coast
Monday night into Tuesday morning, most significant near high tide.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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