Northumberland Strait - western half
Forecast
Marine Forecast
Issued 10:00 AM AST 08 December 2025
Today Tonight and Tuesday.
Wind westerly 25 knots diminishing to west 15 to 20 near noon Tuesday.
Scattered flurries ending this evening. Visibility 1 mile or less in flurries.
Freezing spray warning in effect.
Freezing spray.
Temperatures near minus 8.
Strong wind warning program has ended for the season.
Extended Forecast
Ice Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EST 7 December 2025 Today Tonight and MondayIce Edge
First ice edge estimated from New Brunswick near 4511N 6609W to4508N 6549W to 4518N 6513W to Nova Scotia near 4510N 6445W. Sea ice
northeast of the ice edge.
Second ice edge estimated from Nova Scotia near 4546N 6254W to 4558N
6310W to Prince Edward Island near 4558N 6250W. Sea ice west of the
ice edge.
Third ice edge estimated from 4723N 6136W to 4738N 6112W to 4744N
6124W to 4734N 6159W to 4706N 6212W to 4706N 6147W to 4723N 6136W.
Sea ice within the ice edge.
Fourth ice edge estimated from Prince Edward Island near 4630N 6319W
to 4741N 6431W to 4827N 6402W to 4904N 6404W to 4925N 6516W to 4916N
6703W to 4956N 6635W to Anticosti Island near 4924N 6336W. Sea ice
west then north of the ice edge.
Fifth ice edge estimated from Anticosti Island near 4949N 6317W to
4946N 5954W to Quebec near 5125N 5736W. Sea ice north of the ice
edge.
Ice Coverage
Open water except 9 tenths new ice along parts of the coasts.
Warnings
Warnings (In effect)
Freezing spray warning in effect
Northumberland Strait - western half
Issued 10:00 AM AST 08 December 2025Moderate 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 10:00 AM AST 8 December 2025 Today Tonight and Tuesday At 10:00 a.m. AST today intensifying low 1004 mb located overSable Island.
By 3:00 a.m. AST Tuesday low 975 mb located east of Newfoundland.
At 8:00 p.m. AST tonight approaching ridge located over the
Great Lakes.
Marine Weather Statement
Issued 2:50 AM AST 8 December 2025 A low pressure system over the Gulf of Maine will track south of NovaScotia today and lie near Southeastern Newfoundland this evening.
Gale to storm force northwesterlies will develop across the district
today in the wake of the low. In addition, freezing spray is expected
over most northern waters late Monday as these northwesterlies usher
in cold air.
Marine interests are advised that a storm warning is in effect for
Banquereau - northern half. Gale warnings are in effect for all
remaining waters except Fundy and Northumberland Strait - western
half.
Freezing spray warnings are in effect for Fundy, Grand Manan,
Lurcher, southwestern shore, eastern shore, Fourchu, and all Gulf of
St. Lawrence waters.
St. Lawrence - St. Lawrence River Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- Cornwall to Montréal
- Donnacona to Beauport
- Fundy
- Grand Manan
- Gulf - Magdalen - northern half
- Gulf - Magdalen - southern 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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