Issued 10:00 AM AST 21 November 2017
Today Tonight and Wednesday.
Wind west 10 to 15 knots increasing to southwest 30 this evening then diminishing to southwest 15 to 20 late overnight. Wind veering to northwest 20 Wednesday evening.
Rain at times heavy beginning near noon Wednesday. Fog patches forming near noon Wednesday and dissipating Wednesday evening.
Temperatures minus 2 rising to plus 12 after midnight.
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Ice ForecastsIssued 10:00 AM EDT 20 June 2017 Forecasts have ended for the season.
No watches or warnings in effect.
Technical Marine SynopsisIssued 10:00 AM AST 21 November 2017 Today Tonight and Wednesday At 10:00 a.m. AST today departing low 984 mb located over Labrador
At 8:00 p.m. AST tonight trough located over the Great Lakes.
By 8:00 p.m. AST Wednesday trough located from Anticosti Island
to Georges Bank.
Marine Weather StatementIssued 9:55 AM AST 21 November 2017 A low pressure system over Labrador this morning will continue to
move northward today. Strong to gale force westerlies in the wake of
the low will gradually diminish today.
A developing trough of low pressure over the Great Lakes tonight will
slide eastward to lie from Anticosti to Georges Bank by Wednesday
evening. Strong to gale force southerlies are forecast ahead of this
trough. Winds will shift to strong northwesterly behind it. Southerly
winds may strengthen to storm force over southernmost waters
Marine interests are advised that gale warnings are in effect for
Grand Manan, Lurcher, Browns Bank, Georges Bank, West Scotian Slope,
Cabot Strait - northern half and Anticosti - eastern half.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western half
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- Cornwall to Montréal
- Donnacona to Beauport
- Grand Manan
- Gulf - Magdalen - northwestern half
- Kingston to Cornwall
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- 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
- Arctic - Eastern Arctic
- Arctic - Western Arctic
- Atlantic - Labrador
- Atlantic - Maritimes
- Atlantic - Newfoundland
- Great Lakes - Lake Erie and Lake Ontario
- Great Lakes - Lake Huron
- Great Lakes - Lake Superior
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