Chaleur - Miscou - western half
Forecast
Marine Forecast
Issued 03:00 AM AST 18 January 2026
Today Tonight and Monday.
Wind variable 10 to 15 knots becoming south 10 to 15 this morning then becoming north 15 overnight. Wind backing to west 10 to 15 Monday afternoon then diminishing to light Monday evening.
Flurries overnight and Monday. Visibility as low as 1 mile in flurries.
Temperatures minus 7 rising to minus 2 Monday afternoon.
Strong wind warning program has ended for the season.
Extended Forecast
Issued 03:00 AM AST 18 January 2026
Tuesday
Wind southwest 20 to 25 knots.
Wednesday
Wind west 30 knots.
Thursday
Wind light becoming easterly 15
knots.
Ice Forecast
Issued 10:00 AM EST 17 January 2026 Today Tonight and Sunday 7 tenths new ice including 1 tenth grey-white ice. Consolidated
grey-white 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 January 2026 Today Tonight and SundayIce Edge
First ice edge estimated from New Brunswick near 4532N 6507W to NovaScotia near 4500N 6510W. Sea ice east of the ice edge.
Second ice edge estimated from Nova Scotia near 4435N 6327W to 4432N
6251W to 4539N 5917W to 4704N 6000W to 4825N 6224W to 5039N 5807W to
4759N 5937W to Newfoundland near 4738N 5919W. Sea ice northwest then
east of the ice edge.
Ice Coverage
7 tenths new ice including 1 tenth grey-white ice. Consolidated
grey-white ice along parts of the coasts.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM AST 18 January 2026 Today Tonight and Monday At 3:00 a.m. AST today trough located from Georges Bank to theGulf of St. Lawrence.
By 3:30 p.m. AST today departing trough located east of the Marine
District.
At 8:00 p.m. AST tonight intensifying low 1002 mb located southwest
of Georges Bank.
By 3:30 p.m. AST Monday low 976 mb located east of the Marine
District.
At 3:00 a.m. AST today ridge located over New England.
By 3:30 p.m. AST today ridge located over the central Marine
District.
Marine Weather Statement
Issued 2:43 AM AST 18 January 2026 A trough of low pressure extending from Georges Bank to the Gulf ofSt. Lawrence will move to lie east of the marine district by this
afternoon. A ridge of high pressure over New England will move across
the marine district today and tonight. Strong to gale force
southwesterlies over southeastern waters will diminish today as the
trough moves off to the east and the ridge moves in.
A developing low pressure system will approach the marine district
from the southwest today. The low will intensify as it tracks
northeastward to the south of Nova Scotia tonight and Monday morning.
Winds will increase to strong to gale force northeasterlies north of
the low's track and gale to near storm force southwesterlies south of
the low's track.
Marine interests are advised that gale warnings are in effect for
Georges Bank, southwestern shore, LaHave Bank, West Scotian Slope,
eastern shore, Sable, East Scotian Slope, Fourchu, Banquereau,
Laurentian Fan and Cabot Strait.
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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