Georges Bank Marine Forecast, Warnings and Alerts

Canada

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Georges Bank

Marine Forecast

Issued 10:00 AM AST 20 December 2025

Today Tonight and Sunday.

Gale warning in effect.

Wind westerly 35 knots diminishing to northwest 25 early this afternoon and to light this evening. Wind increasing to southwest 20 late overnight and to westerly 25 to 30 Sunday morning.

Winds

Issued 10:00 AM AST 20 December 2025

Today Tonight and Sunday. Gale warning in effect. Wind westerly 35 knots diminishing to northwest 25 early this afternoon and to light this evening. Wind increasing to southwest 20 late overnight and to westerly 25 to 30 Sunday morning.

Waves

Issued 05:00 AM AST 20 December 2025

Today Tonight and Sunday. Seas 5 to 7 metres subsiding to 3 to 5 early this evening and to 2 to 3 late overnight.

Ice Forecasts

Issued 10:00 AM EST 20 December 2025 Today Tonight and Sunday

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 4540N 6136W 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

Ice free.

Iceberg Bulletin

Issued 1:30 PM EST 20 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 21 Dec estimated from Newfoundland near
5020N 5628W to 5100N 5345W to 5330N 5145W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4500W then northeastward.

Iceberg Count

No confirmed icebergs.

Warnings (In effect)

Gale warning in effect

Georges Bank

Issued 10:00 AM AST 20 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.

Technical Marine Synopsis

Issued 10:00 AM AST 20 December 2025 Today Tonight and Sunday At 10:00 a.m. AST today departing trough located east of the
Marine District.

At 10:00 a.m. AST Sunday low 1001 mb located over southern Quebec.
By 8:00 p.m. AST Sunday departing low 1002 mb located over the
eastern Gulf of St. Lawrence.

At 8:00 p.m. AST tonight ridge located over the western Marine
District.
By 3:00 a.m. AST Sunday departing ridge located over the eastern
Marine District.

Marine Weather Statement

Issued 9:42 AM AST 20 December 2025 As a trough of low pressure continues to track east of the marine
district this morning, gale force westerlies continue in its wake
with storm force westerlies for northern regions. Winds will diminish
later today as a ridge of high pressure builds in from the west.

Another trough moves in from the west on Sunday and strong to gale
force southwesterlies are expected ahead of this trough.

Marine interests are advised that storm warnings are in effect for
Anticosti. Gale warnings are in effect for all remaining waters.

Freezing spray warnings are in effect for Gulf-Magdalen,
Chaleur-Miscou and Anticosti.

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