Marine Forecast
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Wind variable 10 knots increasing to south 15 near midnight then
veering to southwest 15 Friday morning. Wind increasing to southwest 20 Friday
evening.
Strong wind warning program has ended for the season.
Winds
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Wind variable 10 knots increasing to south 15 near midnight then
veering to southwest 15 Friday morning. Wind increasing to southwest 20 Friday
evening.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Waves 0.5 metres or less building to 0.5 to 1 late
overnight.
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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