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Cabot Strait - northern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 11 March 2025

Tonight and Wednesday.

Gale warning in effect.

Wind southeast 20 knots increasing to southeast 30 after midnight with gusts to 45 in the Wreckhouse area. Wind becoming south 35 early Wednesday morning then diminishing to northwest 25 late Wednesday morning.

Showers Wednesday morning. Flurries Wednesday afternoon. Visibility 1 mile or less in precipitation.

Temperatures minus 2 falling to minus 5 Wednesday evening.

Waves

Issued 05:00 PM ADT 11 March 2025
Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 late this evening and to 2 to 3 early Wednesday morning.

Extended Forecast

Issued 03:30 PM ADT 11 March 2025
Thursday Wind northwest 20 knots.
Friday Wind light increasing to southwest 15 to 20 knots late in the day.
Saturday Wind southwest 15 to 20 knots.

Ice Forecast

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday Open water except 2 tenths first-year ice in the extreme southern section. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from New Brunswick near 4523N 6527W to
4511N 6517W to 4409N 6639W to Nova Scotia near 4417N 6608W. Sea ice
northeast of the ice edge.

Second ice edge estimated from Nova Scotia near 4519N 6058W to 4547N
5829W to 4720N 5632W to Newfoundland near 4706N 5547W. Sea ice north
of the ice edge.

Ice Coverage

Open water except 2 tenths first-year ice in the extreme southern
section.

 

Iceberg Bulletin

Issued 2:41 PM EDT 11 March 2025

Iceberg Limit

Iceberg limit at 0000 UTC 12 Mar estimated from Newfoundland near
4700N 5315W to 4825N 4710W to 5025N 4505W to 5335N 4745W to 5900N
5620W to 6020N 5530W then eastwards.

Western iceberg limit at 0000 UTC 12 Mar estimated from Quebec near
5030N 6015W to Newfoundland near 4850N 5755W.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Cabot Strait - northern half

Issued 8:00 PM ADT 11 March 2025

'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 ADT 11 March 2025 Tonight and Wednesday At 8:00 p.m. ADT tonight ridge located on a line north-south over
the eastern Marine District.
By 3:00 a.m. ADT Wednesday ridge located over the Grand Banks.

At 8:00 p.m. ADT tonight trough located near the St. Lawrence River.
By 3:00 a.m. ADT Wednesday trough located from Anticosti Island
to the Gulf of Maine.

At 8:00 p.m. ADT Wednesday weakening trough located over the
eastern Marine District.

Marine Weather Statement

Issued 7:49 PM ADT 11 March 2025 A trough of low pressure approaching the district from the west will
cross the marine district later tonight. Strong to gale force
southerly winds will develop ahead of the trough then shift to strong
to gale force westerlies in its wake.

Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half, Gulf-Magdalen, Chaleur-Miscou and
Anticosti. Freezing spray warnings are in effect for Gulf-Magdalen,
Chaleur-Miscou and Anticosti.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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