Marine Forecast
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Wind southwest 15 knots diminishing to west 10 near midnight
then backing to southwest 10 Wednesday morning. Wind increasing to southwest 15
Wednesday afternoon.
Winds
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Wind southwest 15 knots diminishing to west 10 near midnight
then backing to southwest 10 Wednesday morning. Wind increasing to southwest 15
Wednesday afternoon.
Waves
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Waves 1 metre subsiding to 0.5 or less late overnight then
building to 1 Wednesday evening.
Ice ForecastsIssued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
No watches or warnings in effect.
Technical Marine SynopsisIssued 6:30 PM EDT 4 August 2026 Tonight and Wednesday At 6:30 p.m. EDT tonight ridge located from New York State to South Dakota. By 6:30 p.m. EDT Wednesday ridge located on a line east-west over Nebraska.
At 6:30 p.m. EDT tonight trough located on a line northeast-southwest over eastern Lake Superior. By 6:30 p.m. EDT Wednesday weakening trough located on a line northeast-southwest over northeastern Ontario.
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