Southeastern Grand Banks, Canada Marine Forecast, Warnings and Alerts

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Current Conditions

Canada 7 Day High and Low Temperatures Forecast

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Southeastern Grand Banks

Marine Forecast

Issued 08:00 PM NST 04 December 2025

Tonight and Friday.

Storm warning in effect.

Wind variable 10 to 15 knots increasing to southeast 25 to 35 late overnight and to west 45 to 55 Friday morning.

Rain and fog patches beginning overnight changing to flurries near noon Friday. Visibility 1 mile or less in fog patches and in flurries.

Winds

Issued 08:00 PM NST 04 December 2025

Tonight and Friday. Storm warning in effect. Wind variable 10 to 15 knots increasing to southeast 25 to 35 late overnight and to west 45 to 55 Friday morning.

Waves

Issued 06:00 PM NST 04 December 2025

Tonight and Friday. Seas 3 to 5 metres building to 5 to 7 Friday afternoon and to 7 to 10 Friday evening.

Weather & Visibility

Issued 08:00 PM NST 04 December 2025

Tonight and Friday. Rain and fog patches beginning overnight changing to flurries near noon Friday. Visibility 1 mile or less in fog patches and in flurries.

Ice Forecasts

Southeastern Grand Banks

Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday

Ice Edge

First ice edge estimated from Newfoundland near 5039N 5607W to 5042N
5551W to 5141N 5511W to 5142N 5511W to 5147N 5545W to Newfoundland
near 5137N 5557W. Sea ice west then south of the ice edge.

Second ice edge estimated from Labrador near 5347N 5630W to 5445N
5700W to 5547N 5953W to 5646N 6052W to 5928N 6239W to Labrador near
6018N 6424W. Sea ice west of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday

Ice Edge

Ice Coverage

Forecasts available to mariners upon request.

Iceberg Bulletin

Southeastern Grand Banks

Issued 1:30 PM EST 4 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 5 Dec estimated from Newfoundland near
4900N 5350W to 4900N 4815W to 5000N 4700W to 5100N 4730W to 5945N
5730W to 6120N 5340W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 1:30 PM EST 4 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 5 Dec estimated from Newfoundland near
4900N 5350W to 4900N 4815W to 5000N 4700W to 5100N 4730W to 5945N
5730W to 6120N 5340W then eastward.

Iceberg Count

Forecasts available to mariners upon request.

Warnings (In effect)

Storm warning in effect

Southeastern Grand Banks

Issued 8:00 PM NST 04 December 2025

'Storm' force winds of 48 to 63 knots are occurring or expected to occur in this marine area. 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 8:00 PM NST 4 December 2025 Tonight and Friday At 8:00 p.m. NST tonight deepening low 995 mb located over the
Quebec Lower North Shore.
By 8:00 p.m. NST Friday low 959 mb located over Funk Island Bank.

At 8:00 p.m. NST tonight ridge located on a line north-south over
Funk Island Bank.
By 3:00 a.m. NST Friday departing ridge located east of the
Grand Banks.

Marine Weather Statement

Issued 7:57 PM NST 4 December 2025 A low pressure system over the Lower North Shore of Quebec will cross
the district tonight and Friday to lie over Funk Island Bank by
Friday afternoon, where it will stall and deepen. Strong to gale
force southeasterly to northeasterly winds will spread over most
waters ahead of the low tonight before shifting to gale to storm
force west to northwesterlies in its wake.

Marine interests are advised that storm warnings are in effect for
all waters except Strait of Belle Isle, Northeast Gulf, and Belle
Isle Bank. Gale warnings are in effect for Northeast Gulf and Belle
Isle Bank.

Marine interests are also advised that freezing spray warnings are in
effect for Gulf waters.

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