Issued 10:00 AM AST 18 February 2018
Today Tonight and Monday.
Wind easterly 15 knots increasing to northwest 15 to 20 this afternoon then diminishing to light after midnight. Wind increasing to southwest 20 Monday morning and to southwest 25 to 30 Monday afternoon.
Periods of snow ending this afternoon. A few showers beginning Monday evening. Visibility 1 mile or less in snow.
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Ice ForecastsIssued 10:00 AM EST 18 February 2018 Today Tonight and Monday
Ice EdgeFirst ice edge estimated from New Brunswick near 4530N 6515W to Nova
Scotia near 4505N 6500W. Sea ice northeast of the ice edge.
Second ice edge estimated from Nova Scotia near 4430N 6330W to 4530N
5750W to 4700N 5750W to 4715N 5655W to Newfoundland near 4705N
5555W. Sea ice north of the ice edge.
Open water except 1 tenth grey ice in the extreme eastern section.
No watches or warnings in effect.
Technical Marine SynopsisIssued 10:00 AM AST 18 February 2018 Today Tonight and Monday At 10:00 a.m. AST today intensifying low 995 mb located over
By 8:00 p.m. AST tonight departing low 984 mb located south of
At 10:00 a.m. AST today building ridge located over the western
By 3:30 p.m. AST Monday ridge located over the southeastern Marine
Marine Weather StatementIssued 11:26 AM AST 18 February 2018 An intensifying low pressure system currently over Georges Bank will
rapidly cross southern waters today to lie south of Laurentian Fan
this evening. Gale to storm force winds will continue to spread to
waters south of Nova Scotia today, with a brief period of hurricane
force winds near the track of the low centre over Georges Bank to
East Scotian Slope. Winds will diminish from west to east as the low
passes by and a ridge of high pressure builds into the region.
Recent observations over Extreme Southern Georges Bank have indicated
that wind speeds associated with the passage of the low centre may be
capable of reaching 75 knots. As a result, the Georges Bank and West
Scotian Slope forecasts have been updated.
In addition, high storm force winds are in effect for Laurentian Fan
associated with the passage of this rapidly developing low pressure
system. There remains some uncertainty with how quickly this low will
intensify as it begins to exit the marine district. It is possible
that the strongest winds over Laurentian Fan may reach hurricane
force this evening; however, at this time storm force winds up to 60
knots are expected.
Marine interests are advised that hurricane force wind warnings are
in effect for Georges Bank, West Scotian Slope and East Scotian
Slope. A storm warning is in effect for Laurentian Fan. Gale warnings
are in effect for Browns Bank, lahave, Sable, and Banquereau-southern
Marine interests are also advised that freezing spray warnings are in
effect for all Gulf of St. Lawrence waters.
St. Lawrence - St. Lawrence River Area
- Anticosti - northern half
- Anticosti - southern half
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Cornwall to Montréal
- Donnacona to Beauport
- Grand Manan
- Gulf - Magdalen - northeastern half
- Gulf - Magdalen - southwestern 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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