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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 17 March 2026

Today Tonight and Wednesday.

Gale warning in effect.

Wind south 35 knots veering to southwest 35 to 45 this afternoon then diminishing to west 25 Wednesday afternoon. Wind veering to northwest 15 to 20 Wednesday evening.

Showers overnight and Wednesday. Fog patches forming this evening and dissipating Wednesday afternoon.

Waves

Issued 06:00 AM NDT 17 March 2026
Today Tonight and Wednesday. Seas 2 to 3 metres building to 3 to 4 this morning and to 4 to 6 this evening.

Extended Forecast

Issued 03:00 AM NDT 17 March 2026
Thursday Wind northwest 15 to 20 knots veering to northeast 15 to 20 in the afternoon.
Friday Wind northeast 20 knots.
Saturday Wind northeast 15 to 20 knots.

Ice Forecast

Issued 10:00 AM EDT 16 March 2026 Today Tonight and Tuesday Ice free.  

[ 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
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Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 16 March 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Newfoundland near 4746N 5243W to 4946N 5209W
to 5102N 4857W to 5448N 5146W to 5641N 5608W to 6000N 5815W to 6159N
5721W then northeastward. Sea ice west of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 16 March 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Newfoundland near 4746N 5243W to 4946N 5209W
to 5102N 4857W to 5448N 5146W to 5641N 5608W to 6000N 5815W to 6159N
5721W then northeastward. Sea ice west of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 16 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 17 Mar estimated from Newfoundland near
4640N 5310W to 4535N 4600W to 4540N 4400W to 4815N 4300W to 5200N
4700W to 5650N 5345W to 5930N 5700W to 6120N 5400W to 5815N 4855W
then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 16 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 17 Mar estimated from Newfoundland near
4640N 5310W to 4535N 4600W to 4540N 4400W to 4815N 4300W to 5200N
4700W to 5650N 5345W to 5930N 5700W to 6120N 5400W to 5815N 4855W
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 17 March 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 17 March 2026 Today Tonight and Wednesday At 3:00 a.m. NDT today trough located over Newfoundland.
By 8:00 p.m. NDT tonight departing trough located on a line
northwest-southeast over Labrador Sea.

At 3:00 a.m. NDT today trough located over southern Quebec.
By 3:00 a.m. NDT Wednesday trough located over western Newfoundland.

At 3:00 a.m. NDT today ridge located on a line north-south over
the southeastern Grand Banks.
By 10:00 a.m. NDT today departing ridge located east of the Marine
District.

Marine Weather Statement

Issued 2:55 AM NDT 17 March 2026 A trough of low pressure over Newfoundland will track northeastward
today and depart the marine district this evening. Strong to gale
force southeasterlies ahead of the trough will shift to
southwesterlies behind it.

A second trough of low pressure over Southern Quebec will approach
the marine district today and cross Newfoundland overnight tonight.
Strong to gale force southwesterlies ahead of the trough will shift
to westerlies in its wake.

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

Marine interests are also advised that freezing spray warnings are in
effect for Gulf waters, Southwest Coast, Northeast Coast, Belle Isle
Bank, and Funk Island Bank.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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