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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 21 April 2026

Today Tonight and Wednesday.

Gale warning in effect.

Wind variable 15 to 20 knots increasing to north 25 this morning and to north 35 overnight except southeast 25 over southeastern sections overnight and Wednesday morning. Wind diminishing to northwest 25 Wednesday afternoon.

Rain and fog banks ending Wednesday afternoon.

Waves

Issued 06:00 PM NDT 20 April 2026
Tonight and Tuesday. Seas 1 to 2 metres building to 2 to 3 Tuesday morning.

Extended Forecast

Issued 03:00 AM NDT 21 April 2026
Thursday Wind northwest 25 knots diminishing to variable 10 to 15 late in the day.
Friday Wind variable 10 to 15 knots increasing to north 35.
Saturday Wind west 25 to 35 knots.

Ice Forecast

Issued 10:00 AM EDT 20 April 2026 Today Tonight and Tuesday 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:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 20 April 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Newfoundland near 4745N 5243W to 4641N 4618W
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 20 April 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Newfoundland near 4745N 5243W to 4641N 4618W
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 20 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 21 Apr estimated from Newfoundland near
4655N 5400W to 4415N 5210W to 4340N 4630W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
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 20 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 21 Apr estimated from Newfoundland near
4655N 5400W to 4415N 5210W to 4340N 4630W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southwestern Grand Banks

Issued 03:00 AM NDT 21 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 3:00 AM NDT 21 April 2026 Today Tonight and Wednesday At 3:00 a.m. NDT today trough located on a line north-south over
the East Coast of Newfoundland.
By 3:00 a.m. NDT Wednesday trough located on a line north-south
over the Grand Banks.

Marine Weather Statement

Issued 2:53 AM NDT 21 April 2026 A trough of low pressure will remain nearly stationary just east of
Newfoundland throughout the forecast period. The trough is expected
to intensify overnight tonight into Wednesday. As a result, strong to
gale force northerlies will develop just west of the trough tonight
and Wednesday.

Marine interests are advised that gale warnings are in effect for
Strait of Belle Isle - eastern half and Southwestern Grand Banks.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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