Marine Forecast
Issued 10:30 AM EDT 13 September 2026
Today Tonight and Monday.
Strong wind warning in effect.
Wind west 15 knots increasing to northwest 20 this evening then
diminishing to northwest 10 early Monday morning. Wind backing to west 10 Monday
afternoon then becoming light Monday evening.
Scattered showers this afternoon and this
evening.
Winds
Issued 10:30 AM EDT 13 September 2026
Today Tonight and Monday.
Strong wind warning in effect.
Wind west 15 knots increasing to northwest 20 this evening then
diminishing to northwest 10 early Monday morning. Wind backing to west 10 Monday
afternoon then becoming light Monday evening.
Waves
Issued 10:30 AM EDT 13 September 2026
Today Tonight and Monday.
Waves 0.5 to 1 metre building to 1 to 1.5 near midnight then
subsiding to 0.5 or less Monday morning.
Weather & Visibility
Issued 10:30 AM EDT 13 September 2026
Today Tonight and Monday.
Scattered showers this afternoon and this
evening.
Ice Forecasts
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings (In effect)
Eastern Lake Ontario
Issued 10:30 AM EDT 13 September 2026'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.
Technical Marine Synopsis
Issued 10:30 AM EDT 13 September 2026 Today Tonight and Monday At 10:30 a.m. EDT today departing cold front from 988 mb low
located on a line northeast-southwest over Lake Simcoe.
At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over North Dakota.
By 10:30 a.m. EDT Monday ridge located on a line northwest-southeast
over Michigan.