Marine Forecast
Issued 03:00 AM EDT 22 July 2026
Today Tonight and Thursday.
Strong wind warning in effect.
Wind northwest 25 knots diminishing to northwest 15 early this
evening then backing to west 15 Thursday morning. Wind backing to southwest 15
Thursday evening.
Scattered showers ending near noon.
Winds
Issued 03:00 AM EDT 22 July 2026
Today Tonight and Thursday.
Strong wind warning in effect.
Wind northwest 25 knots diminishing to northwest 15 early this
evening then backing to west 15 Thursday morning. Wind backing to southwest 15
Thursday evening.
Waves
Issued 03:00 AM EDT 22 July 2026
Today Tonight and Thursday.
Waves 1.5 to 2 metres subsiding to 1 this
afternoon.
Weather & Visibility
Issued 03:00 AM EDT 22 July 2026
Today Tonight and Thursday.
Scattered showers ending near noon.
Ice Forecasts
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings (In effect)
Georgian Bay
Issued 03:00 AM EDT 22 July 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 3:00 AM EDT 22 July 2026 Today Tonight and Thursday At 3:00 a.m. EDT today trough from 991 mb low located on a line
north-south over eastern Ontario.
By 3:00 a.m. EDT Thursday departing trough from 992 mb low located
on a line northwest-southeast over the Gulf of St. Lawrence.
At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over Minnesota.
By 3:00 a.m. EDT Thursday ridge located on a line east-west over
southwestern Ontario.