Issued 08:00 PM ADT 03 August 2020
Tonight and Tuesday.
Strong wind warning in effect.
Wind southwest 20 knots veering to westerly 15 to 20 after midnight then diminishing to variable 10 to 15 near noon Tuesday. Wind becoming northeasterly 15 early Tuesday evening.
Showers this evening.
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Ice ForecastsIssued 10:00 AM EDT 25 May 2020
Forecasts available to mariners upon request.
Warnings (In effect)
Northumberland StraitIssued 8:00 PM ADT 03 August 2020
'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.
Technical Marine SynopsisIssued 8:00 PM ADT 3 August 2020 Tonight and Tuesday At 8:00 p.m. ADT tonight low 1004 mb located north of the Gaspe
By 3:30 p.m. ADT Tuesday departing low 1007 mb located over eastern
At 10:00 a.m. ADT Tuesday ridge located on a line
northwest-southeast over Maine.
By 8:00 p.m. ADT Tuesday ridge located on a line north-south over
the Gulf of St. Lawrence.
Marine Weather StatementIssued 7:40 PM ADT 3 August 2020 Tropical cyclone information statement.
At 6:00 P.M. ADT, tropical storm Isaias was located near
Latitude 32.0 north and longitude 79.4 west, or about 55 nautical
miles south-southeast of Charleston, South Carolina. Isaias had
maximum sustained winds of 60 knots and a minimum central pressure of
993 millibars. Isaias is currently moving north-northeast at about
15 knots. Isaias will continue moving north-northeast tonight and
Tuesday to eventually move inland and pass west of New Brunswick on
Wednesday. Although there still remains some uncertainty at this
time, Isaias could possibly bring marginal gales to westernmost
waters on Wednesday.
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
- Kingston to Cornwall
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- 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
- 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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