Anticosti
Forecast
Marine Forecast
Issued 08:00 PM ADT 26 April 2025
Tonight and Sunday.
Strong wind warning in effect.
Wind east 20 to 25 knots increasing to easterly 25 to 30 near midnight then backing to northeasterly 20 to 25 near noon Sunday.
Periods of rain and fog patches.
Waves
Issued 05:00 PM ADT 26 April 2025
Anticosti - northern half
Tonight and Sunday.
Seas 1 metre or less building to 1 to 2 late overnight and to 2
to 3 Sunday morning. Seas subsiding to 1 to 2 Sunday evening.
Anticosti - southern half
Tonight and Sunday.
Seas 1 metre or less building to 1 to 2 this evening and to 2 to
3 late overnight. Seas subsiding to 1 to 2 Sunday afternoon.
Extended Forecast
Issued 03:30 PM ADT 26 April 2025
Monday
Wind northerly 30 knots diminishing to
northerly 15 to 20 in the afternoon and to light late in the day.
Tuesday
Wind southwest 15 to 20 knots increasing to
southwest 25.
Wednesday
Wind south 25 knots increasing to northwest
30.
Ice Forecast
Issued 10:00 AM EDT 26 April 2025 Today Tonight and Sunday Open water except 1 tenth first-year ice in strips and patches near
Gaspe. Consolidated rotten first-year ice in a few bays.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 26 April 2025 Today Tonight and SundayIce Edge
First ice edge estimated from Quebec near 4832N 6412W to 4835N 6404Wto 4844N 6402W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.
Second ice edge estimated from Quebec near 5011N 6057W to 4955N
6023W to 5107N 5730W to Newfoundland near 5029N 5728W. Sea ice north
then east of the ice edge.
Ice Coverage
Open water except 1 tenth first-year ice in strips and patches near
Gaspe. Consolidated rotten first-year ice in a few bays.
Iceberg Bulletin
Issued 2:30 PM EDT 24 April 2025Iceberg Limit
Iceberg limit at 0000 UTC 25 Apr estimated from Newfoundland near4731N 5444W to 4055N 5215W to 4125N 4740W to 4705N 3500W to 5355N
4530W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.
Western iceberg limit at 0000 UTC 25 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.
Iceberg Count
No confirmed icebergs except less than 10 icebergs northeast of thewestern iceberg limit.
Warnings
Warnings (In effect)
Strong wind warning in effect
Anticosti
Issued 8:00 PM ADT 26 April 2025'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 or Weatheradio stations.
Synopsis
Technical Marine Synopsis
Issued 8:00 PM ADT 26 April 2025 Tonight and Sunday At 8:00 p.m. ADT tonight low 1002 mb located over New England.By 10:00 a.m. ADT Sunday low 1000 mb located over Maine.
At 8:00 p.m. ADT Sunday low 1002 mb located near Lurcher.
Marine Weather Statement
Issued 7:46 PM ADT 26 April 2025 A low pressure system west of the Maritimes will slowly Progresseastward tonight and Sunday. Increasing southerly winds ahead of the
system will reach strong to gale force across the marine district.
Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half and Gulf-Magdalen - eastern half.
St. Lawrence - St. Lawrence River Area
- Anticosti
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Cornwall to Montréal
- Donnacona to Beauport
- Fundy
- Grand Manan
- Gulf - Magdalen - western half
- Kingston to Cornwall
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Montréal to Trois-Rivières
- Northumberland Strait - western half
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Richelieu River and Northern Lake Champlain
- Saguenay to Tadoussac
- Tadoussac to Pointe à Michel
- Trois-Rivières to Donnacona
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