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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 12 August 2026

Today Tonight and Thursday.

Wind south 10 to 15 knots veering to southwest 15 to 20 this morning then to west 10 to 15 this evening. Wind backing to south 10 to 15 Thursday evening.

Showers ending overnight. Risk of thunderstorms this morning. Fog banks dissipating Thursday morning.

Waves

Issued 06:00 AM NDT 12 August 2026
Today Tonight and Thursday. Seas 1 to 2 metres subsiding to 1 Thursday afternoon.

Extended Forecast

Issued 03:00 AM NDT 12 August 2026
Friday Wind south 10 to 15 knots backing to southeast 20 in the morning then veering to southwest 20 in the afternoon.
Saturday Wind west 25 knots diminishing to west 15.
Sunday Wind variable 10 to 15 knots.

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Weather Conditions

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

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.
 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 11 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Aug estimated from Newfoundland near
4825N 5310W to 4840N 5220W to 5010N 5100W to 5800N 5300W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 11 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Aug estimated from Newfoundland near
4825N 5310W to 4840N 5220W to 5010N 5100W to 5800N 5300W to 6020N
5200W then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM NDT 12 August 2026 Today Tonight and Thursday At 3:00 a.m. NDT today low 999 mb located over the Gulf of
St. Lawrence.
By 3:00 a.m. NDT Thursday low 998 mb located over southwestern
Belle Isle Bank.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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