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Southwestern Grand Banks

Forecast

Marine Forecast

Issued 08:00 PM NDT 11 April 2026

Tonight and Sunday.

Gale warning in effect.

Wind northeast 25 knots except south 30 over southeastern sections. Wind diminishing to northwest 15 to 20 this evening except northwest 30 over southern sections. Wind becoming west 20 late overnight then increasing to west 35 Sunday morning. Wind veering to northwest 35 to 45 Sunday afternoon.

Rain changing to showers or flurries Sunday morning. Fog patches dissipating late overnight.

Waves

Issued 06:00 PM NDT 11 April 2026
Tonight and Sunday. Seas 1 to 2 metres except 3 to 4 over southern sections. Seas building to 2 to 3 late overnight and to 3 to 5 near noon Sunday and to 5 to 7 Sunday evening.

Extended Forecast

Issued 03:30 PM NDT 11 April 2026
Monday Wind northwest 35 knots diminishing to west 20 in the afternoon.
Tuesday Wind south 25 to 35 knots becoming west 25.
Wednesday Wind variable 10 to 15 knots.

Ice Forecast

Issued 10:00 AM EDT 11 April 2026 Today Tonight and Sunday Bergy water.  

[ Canadian Ice Service ]

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Weather Conditions

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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
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Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 11 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4715N 4800W
to 4815N 4700W 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 11 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4715N 4800W
to 4815N 4700W 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 11 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 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 11 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 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 8:00 PM NDT 11 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 8:00 PM NDT 11 April 2026 Tonight and Sunday At 8:00 p.m. NDT tonight deepening low 1005 mb located over the
Gulf of St. Lawrence.
By 3:30 p.m. NDT Sunday merging low 989 mb located east of Funk
Island Bank.

At 8:00 p.m. NDT tonight deepening low 1000 mb located over the
southern Grand Banks.
By 3:30 p.m. NDT Sunday merging low 989 mb located east of Funk
Island Bank.

At 8:00 p.m. NDT tonight dissipating ridge located on a line
east-west over Belle Isle Bank.

Marine Weather Statement

Issued 7:42 PM NDT 11 April 2026 A deepening low pressure system over the Gulf of St. Lawrence will
track eastward across Newfoundland tonight and Sunday morning.
Meanwhile, a second deepening low pressure system over the Southern
Grand Banks will track northeastward across the Grand Banks.
By Sunday afternoon, both systems are expected to merge into an
intense low pressure system that will remain nearly stationary just
east of Funk Island Bank.

Gale force northeasterlies to northwesterlies are expected in the
vicinity of the first low over the Gulf waters tonight, while gale
force southerlies to westerlies are expected over the Grand Banks
with the second low. As the lows merge on Sunday, gale force
southwesterlies to northwesterlies will spread to all remaining
waters.

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

Atlantic - Newfoundland Area

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