Chaleur - Miscou - western half
Forecast
Marine Forecast
Issued 03:00 AM AST 18 February 2026
Today Tonight and Thursday.
Wind southeasterly 15 knots becoming variable 10 to 15 this morning then becoming northerly 15 early this evening. Wind increasing to northwest 20 to 25 Thursday morning.
Periods of snow ending after midnight. Visibility as low as 1 mile in snow.
Temperatures minus 3 falling to minus 8 Thursday morning.
Strong wind warning program has ended for the season.
Extended Forecast
Issued 03:00 AM AST 18 February 2026
Friday
Wind variable 10 to 15 knots.
Saturday
Wind northerly 15 knots increasing to
northerly 25.
Sunday
Wind north 15 to 20 knots.
Ice Forecast
Issued 10:00 AM EST 17 February 2026 Today Tonight and Wednesday 9 tenths grey ice except 9 plus tenths grey-white ice in the eastern
section. Consolidated first-year ice along parts of the coasts.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EST 17 February 2026 Today Tonight and WednesdayIce Edge
Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to4315N 6515W to 4600N 5845W to 4715N 5915W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.
Ice Coverage
9 tenths grey ice except 9 plus tenths grey-white ice in the eastern
section. Consolidated first-year ice along parts of the coasts.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM AST 18 February 2026 Today Tonight and Thursday At 3:00 a.m. AST today low 967 mb located over the southernGrand Banks.
By 3:30 p.m. AST today departing low 966 mb located over the
northeastern Grand Banks.
At 3:00 a.m. AST today trough located from New Brunswick to the
Gulf of Maine.
By 3:00 a.m. AST Thursday dissipating trough located over the
eastern Marine District.
At 3:30 p.m. AST Thursday ridge located west of the Marine District.
Marine Weather Statement
Issued 2:46 AM AST 18 February 2026 An intense low pressure system over the Southern Grand Banks willcontinue moving northeastward into the Labrador Sea tonight. Gale to
storm force northerlies over extreme eastern waters diminish to
strong to gale force westerlies this morning. Strong northerlies will
persist for most of the region until Thursday afternoon when a ridge
of high pressure moves in from the west.
Marine interests are advised that storm warnings are in effect for
Banquereau - southeastern half and Laurentian Fan - eastern half.
Gale warnings are in effect for Banquereau - northwestern half and
Laurentian Fan - western half.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western half
- 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
- 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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