Cornwall to Montréal
Forecast
Marine Forecast
Issued 03:00 PM EDT 19 June 2025
Tonight and Friday.
Strong wind warning in effect.
Wind southwest 15 to 25 knots veering to northwesterly 15 to 25 late overnight then diminishing to west 10 to 15 Friday evening.
Showers ending near midnight. Risk of thunderstorms late this afternoon. Showers Friday evening with a risk of thunderstorms. Fog banks forming overnight and dissipating Friday morning. Visibility as low as 1 mile in showers and 1 mile or less in fog banks.
Extended Forecast
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
Warnings (In effect)
Strong wind warning in effect
Cornwall to Montréal
Issued 9:19 PM EDT 19 June 2025'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.
Synopsis
Technical Marine Synopsis
Issued 3:00 PM EDT 19 June 2025 Tonight and Friday At 3:00 p.m. EDT today low 999 mb located over eastern Lake Huron.By 8:00 p.m. EDT Friday low 996 mb located over Chaleur Bay.
At 3:00 p.m. EDT today high 1017 mb located on a line north-south
over western Lake Superior.
By 8:00 p.m. EDT Friday high 1017 mb located on a line north-south
over Lake Erie.
Great Lakes - Lake Huron Area
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