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Anticosti - southeastern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 06 March 2026

Today Tonight and Saturday.

Gale warning in effect.

Wind northwest 15 to 20 knots diminishing to light early this morning then increasing to south 15 after midnight. Wind increasing to south 25 Saturday morning and to southwesterly 35 Saturday afternoon.

Flurries early Saturday evening changing to rain.

Freezing spray warning in effect.

Over open water freezing spray Saturday morning.

Temperatures minus 12 rising to plus 2 Saturday evening.

Waves

Issued 05:00 PM AST 05 March 2026

Anticosti - eastern half

Tonight and Friday. Over open water seas 1 to 2 metres subsiding to 1 or less Friday morning.

Anticosti - western half

Tonight and Friday. Over open water seas 1 to 2 metres subsiding to 1 or less late overnight.

Extended Forecast

Issued 03:00 AM AST 06 March 2026
Sunday Wind southwest 25 to 35 knots diminishing to northwest 20 in the afternoon.
Monday Wind southwest 20 knots.
Tuesday Wind southwest 30 knots diminishing to northwest 20.

Ice Forecast

Anticosti - eastern half

Issued 10:00 AM EST 5 March 2026 Today Tonight and Friday Open water except 6 tenths new ice including 2 tenths grey ice along parts of the coasts. 2 tenths first-year ice in the extreme southwestern section. Consolidated first-year ice along parts of the coasts. 

Anticosti - western half

Issued 10:00 AM EST 5 March 2026 Today Tonight and Friday 5 tenths new ice including 2 tenths grey ice except 7 tenths grey-white ice including 1 tenth first-year ice in the southern section. Consolidated first-year ice along parts of the coasts. 

[ 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

Anticosti - eastern half

Issued 10:00 AM EST 5 March 2026 Today Tonight and Friday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4600N 5845W to 4714N 5856W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

Open water except 6 tenths new ice including 2 tenths grey ice along
parts of the coasts. 2 tenths first-year ice in the extreme
southwestern section. Consolidated first-year ice along parts of the
coasts.

Ice Forecasts

Anticosti - western half

Issued 10:00 AM EST 5 March 2026 Today Tonight and Friday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4600N 5845W to 4714N 5856W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

5 tenths new ice including 2 tenths grey ice except 7 tenths
grey-white ice including 1 tenth first-year ice in the southern
section. Consolidated first-year ice along parts of the coasts.

 

Iceberg Bulletin

Issued 1:50 PM EST 5 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 6 Mar estimated from Newfoundland near
4640N 5310W to 4455N 4955W to 4545N 4525W to 4820N 4140W to 5930N
5700W to 6150N 5400W to 5850N 5035W to 5810N 4530W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - southeastern half

Issued 03:00 AM AST 06 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.

Freezing spray warning in effect

Anticosti - southeastern half

Issued 03:00 AM AST 06 March 2026

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 AST 6 March 2026 Today Tonight and Saturday At 10:00 a.m. AST today low located southwest of Georges Bank.
By 3:30 p.m. AST Saturday dissipating low located south of East
Scotian Slope.

At 10:00 a.m. AST Saturday low 997 mb located over Ontario.
By 8:00 p.m. AST Saturday approaching low 987 mb located northwest
of the Maritimes.

Marine Weather Statement

Issued 2:29 AM AST 6 March 2026 A low pressure system will slowly approach southwestern waters today
passing south of Georges Bank this evening before dissipating on
Saturday. Winds will increase to strong to gale force easterlies just
north of the low then diminish on Saturday.

On Saturday another low will approach the Maritimes from the west.
Strong to gale force southerly winds are forecast to develop late in
the day over northern waters.

Marine interests are advised that gale warnings are in effect for
Georges Bank, West Scotian Slope, Gulf-Magdalen - northeastern half
and Anticosti - southeastern half.

Marine interests are also advised that freezing spray warnings are in
effect for Cabot Strait - northern half, Gulf-Magdalen - northeastern
half and Anticosti - southeastern half.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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