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Cabot Strait - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 12 March 2025

Today Tonight and Thursday.

Wind south 25 to 30 knots becoming northwest 25 near noon then veering to north 15 to 20 Thursday morning. Wind diminishing to light Thursday evening.

Showers this morning. Flurries or showers early this afternoon. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Over open water freezing spray beginning this evening and ending Thursday morning.

Temperatures minus 1 falling to minus 5 near midnight.

Waves

Issued 05:00 AM ADT 12 March 2025
Today Tonight and Thursday. Seas 2 to 3 metres subsiding to 1 to 2 Thursday morning.

Extended Forecast

Issued 03:00 AM ADT 12 March 2025
Friday Wind light increasing to southwest 15 to 20 knots in the afternoon and to southwest 25 late in the day.
Saturday Wind southwest 25 knots diminishing to light.
Sunday Wind southwest 15 knots increasing to southwest 25.

Ice Forecast

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday 2 tenths first-year ice. 

[ 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

2 tenths first-year ice.

 

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)

Freezing spray warning in effect

Cabot Strait - southern half

Issued 03:00 AM ADT 12 March 2025

Moderate or severe freezing spray is 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 12 March 2025 Today Tonight and Thursday At 3:00 a.m. ADT today trough located from Anticosti Island to
New Brunswick.
By 8:00 p.m. ADT tonight departing trough located over Banquereau.

At 8:00 p.m. ADT tonight building ridge located over the
St. Lawrence River.

Marine Weather Statement

Issued 2:47 AM ADT 12 March 2025 A trough of low pressure over New Brunswick will travel east across
the marine district today. 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 Cabot Strait,
Gulf-Magdalen, Chaleur-Miscou, and Anticosti.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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