Marine Forecast
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Wind southwest 20 knots increasing to southwest 25 this evening
then diminishing to southwest 15 Friday morning.
Scattered flurries beginning near midnight changing to snow
overnight then to scattered flurries near noon Friday. Visibility 1 mile or less
in snow.
Strong wind warning program has ended for the season.
Winds
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Wind southwest 20 knots increasing to southwest 25 this evening
then diminishing to southwest 15 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 metre building to 1.5 near midnight then subsiding to 0.5
to 1 near noon Friday.
Weather & Visibility
Issued 06:30 PM EST 04 December 2025
Tonight and Friday.
Scattered flurries beginning near midnight changing to snow
overnight then to scattered flurries near noon Friday. Visibility 1 mile or less
in snow.
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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