Northumberland Strait - western half
Issued 08:00 PM ADT 20 March 2023
Tonight and Tuesday.
Wind west 25 to 30 knots diminishing to west 20 this evening and to west 15 late overnight except light over western sections. Wind diminishing to light near noon Tuesday.
Flurries Tuesday evening. Visibility 1 mile or less in flurries.
Temperatures minus 1 falling to minus 6 Tuesday morning then rising to zero Tuesday evening.
Strong wind warning program has ended for the season.
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Ice ForecastsIssued 10:00 AM EDT 20 March 2023 Today Tonight and Tuesday
Ice EdgeIce edge estimated from Nova Scotia near 4557N 5947W to 4620N 5930W
to 4845N 6230W to 5000N 5845W to 4730N 5940W to Newfoundland near
4711N 5528W. Sea ice west then northeast of the ice edge.
Ice CoverageIce pressure warning in effect.
1 tenth first-year ice except 9 plus tenths first-year ice along the
coast of Prince Edward Island. Strong ice pressure along the coast
of Prince Edward Island easing tonight.
Warnings (In effect)
Ice pressure warning in effect
Northumberland Strait - western halfIssued 10:00 AM EDT 20 March 2023
Navigators in this marine area should be on the lookout for hazardous ice conditions and take necessary safety precautions. Please refer to the latest ice forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio stations.
Technical Marine SynopsisIssued 8:00 PM ADT 20 March 2023 Tonight and Tuesday At 8:00 p.m. ADT tonight low 978 mb located north of Newfoundland.
By 3:00 a.m. ADT Tuesday departing low 982 mb located northeast
At 8:00 p.m. ADT tonight ridge located from the East Coast of the
U.S. to West Scotian Slope.
By 3:30 p.m. ADT Tuesday ridge located from the East Coast of the
U.S. to Laurentian Fan.
Marine Weather StatementIssued 7:45 PM ADT 20 March 2023 A low pressure system north of Newfoundland will slowly move eastward
tonight. Strong to gale force westerlies will gradually diminish from
west to east overnight tonight and Tuesday as the low moves farther
east of Newfoundland.
Marine interests are advised that gale warnings are in effect for
Banquereau, Laurentian Fan - northern half, Cabot Strait,
Gulf-Magdalen - northeastern half, and Anticosti.
Marine interests are also advised that freezing spray warnings are in
effect for Gulf-Magdalen - northeastern half and Anticosti.
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
- 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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