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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:30 PM NDT 12 April 2026

Tonight and Monday.

Gale warning in effect.

Wind northwest 35 to 45 knots diminishing to northwest 25 to 35 Monday morning then becoming northwest 25 Monday afternoon. Wind backing to west 15 to 20 Monday evening.

Showers or flurries ending Monday morning.

Waves

Issued 06:00 AM NDT 12 April 2026
Today Tonight and Monday. Seas 2 to 3 metres building to 3 to 5 near noon and to 5 to 7 this afternoon. Seas subsiding to 3 to 5 Monday morning and to 2 to 3 Monday evening.

Extended Forecast

Issued 03:30 PM NDT 12 April 2026
Tuesday Wind southwest 25 to 35 knots becoming west 25 in the afternoon.
Wednesday Wind light.
Thursday Wind west 20 knots veering to north 15 to 20.

Ice Forecast

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday Bergy water.  

[ Canadian Ice Service ]

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

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4644N 4727W
to 4748N 4639W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W then northeastward. Sea ice north then west of
the ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4644N 4727W
to 4748N 4639W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W then northeastward. Sea ice north then west of
the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 12 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 Apr estimated from Newfoundland near
4655N 5400W to 4510N 5245W to 4505N 4650W to 4620N 4255W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.

Iceberg Count

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

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 12 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 Apr estimated from Newfoundland near
4655N 5400W to 4510N 5245W to 4505N 4650W to 4620N 4255W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southwestern Grand Banks

Issued 3:30 PM NDT 12 April 2026

'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 3:30 PM NDT 12 April 2026 Tonight and Monday At 3:30 p.m. NDT today merging low 997 mb located east of the
Avalon Peninsula.
At 3:30 p.m. NDT today merging low 989 mb located east of the
Grand Banks.
By 3:00 a.m. NDT Monday quasi-stationary low 983 mb located east
of Funk Island Bank.

At 8:00 p.m. NDT tonight ridge located on a line north-south over
the Maritimes.
By 8:00 p.m. NDT Monday ridge located on a line north-south over
eastern Newfoundland.

Marine Weather Statement

Issued 3:23 PM NDT 12 April 2026 A low pressure system just off the Avalon Peninsula and a second low
pressure system east of the Grand Banks will merge into an intense
low pressure system that will remain nearly stationary east of marine
district throughout the forecast period.

Strong to gale force northeasterlies to southwesterlies will shift to
strong to gale force westerlies to northwesterlies as the two lows
merge. Winds will diminish gradually from west to east on Monday as
the low begins to move out to sea and a ridge of high pressure builds
in from the west.

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

Atlantic - Newfoundland Area

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Marine Weather for Canada

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