Marine Forecast
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Wind northwest 20 knots diminishing to variable 10 this evening
then increasing to south 20 early Friday morning.
Risk of freezing spray this evening.
Strong wind warning program has ended for the season.
Winds
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Wind northwest 20 knots diminishing to variable 10 this evening
then increasing to south 20 early Friday morning.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Waves 1.5 metres subsiding to 0.5 or less near midnight then
building to 1 Friday morning.
Freezing Spray
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Risk of freezing spray this evening.
Ice ForecastsIssued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
No watches or warnings in effect.
Technical Marine SynopsisIssued 6:30 PM EST 4 December 2025 Tonight and Friday At 6:30 p.m. EST tonight ridge located on a line northeast-southwest over southwestern Ontario. By 6:30 p.m. EST Friday departing ridge located on a line northeast-southwest over the Maritimes.
At 6:30 p.m. EST tonight cold front located on a line east-west over southern Manitoba. By 6:30 p.m. EST Friday cold front located on a line northeast-southwest over Lake Superior.
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