Cornwall to Montréal
Issued 03:00 AM EDT 04 August 2020
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind northeast 10 to 15 knots veering to southeasterly 10 to 15 this afternoon then increasing to northeast 15 to 25 this evening. Wind diminishing to light overnight then increasing to southwest 15 to 25 Wednesday morning.
Showers. Risk of thunderstorms today and Wednesday morning and afternoon. Visibility as low as 1 mile in showers.
Zoom-in to make a selection
Warnings (In effect)
Cornwall to MontréalIssued 03:00 AM EDT 04 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 3:00 AM EDT 4 August 2020 Today Tonight and Wednesday At 3:00 a.m. EDT today low 1012 mb located over Lake Erie.
By 8:00 p.m. EDT Wednesday low 1004 mb located north of Lake
At 3:00 a.m. EDT today Hurricane Isaias 995 mb located near Cape
By 8:00 a.m. EDT Wednesday Post-tropical Storm Isaias 1004 mb
located over Rivière-du-Loup.
Great Lakes - Lake Erie and Lake Ontario Area
- 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
What we are doing
- Date modified: