Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 10:30 AM EDT 08 August 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.

Watches (In effect)

Squall watch in effect

Southern Georgian Bay

Issued 11:58 AM EDT 08 August 2026 Showers and thunderstorms are expected to track east across the region this afternoon ahead of a cold front. Squalls with wind gusts up to 45 knots, frequent lightning and hail are possible.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

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Technical Marine Synopsis

Issued 10:30 AM EDT 8 August 2026 Today Tonight and Sunday At 10:30 a.m. EDT today cold front located on a line
northeast-southwest over Lake Huron.
By 10:30 a.m. EDT Sunday cold front located over southern Quebec.

At 10:30 a.m. EDT today ridge from high located on a line
northwest-southeast over southern Minnesota.
By 10:30 a.m. EDT Sunday ridge from high located on a line
north-south over southern Ontario.