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Cabot Strait - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 19 August 2026

Today Tonight and Thursday.

Strong wind warning in effect.

Wind southeasterly 20 to 25 knots increasing to southeasterly 25 to 30 near noon then diminishing to south 15 to 20 this evening. Wind diminishing to southwest 10 to 15 overnight and to light Thursday morning. Wind becoming southerly 15 Thursday afternoon.

Showers ending overnight. Risk of thunderstorms this morning. Fog patches forming this morning and dissipating Thursday afternoon.

Waves

Issued 05:00 AM ADT 19 August 2026
Today Tonight and Thursday. Seas 1 to 2 metres building to 2 to 3 this morning then subsiding to 1 to 2 near midnight. Seas subsiding to 1 or less Thursday evening.

Extended Forecast

Issued 03:00 AM ADT 19 August 2026
Friday Wind variable 10 to 15 knots.
Saturday Wind light.
Sunday Wind southeasterly 15 knots increasing to southeast 25.

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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
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
 

Iceberg Bulletin

Issued 2:30 PM EDT 18 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Aug estimated from Newfoundland near
4915N 5330W to 4940N 5320W to 5030N 5330W to 6000N 5600W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Cabot Strait - southern half

Issued 06:21 AM ADT 19 August 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 19 August 2026 Today Tonight and Thursday At 3:00 a.m. ADT today trough located from the Gulf of St. Lawrence
to West Scotian Slope.
By 3:30 p.m. ADT today trough located from the Gulf of St. Lawrence
to East Scotian Slope.

At 3:00 a.m. ADT Thursday trough located from Newfoundland to
Laurentian Fan.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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