Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Whitefish Bay

Issued 6:30 PM EDT 16 August 2025

'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 or Weatheradio stations.

Watches (In effect)

Squall watch in effect

Whitefish Bay

Issued 6:51 PM EDT 16 August 2025 Conditions are favourable for the development of squalls with wind gusts up to 50 knots, frequent lightning, hail and poor to very poor visibility in thunderstorms heavy at times.

Thunderstorms with squalls to 50 knots are quite possible this evening as a cold front moves through.

Vessels without lightning protection should make their way to shore immediately. 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 6:30 PM EDT 16 August 2025 Tonight and Sunday At 6:30 p.m. EDT tonight cold front located on a line
northeast-southwest over northern Lake Huron.
By 6:30 p.m. EDT Sunday departing cold front located from New
Hampshire to Lake Erie then to Indiana.

At 6:30 p.m. EDT tonight high 1024 mb located over northwestern
Ontario.
By 6:30 p.m. EDT Sunday high 1026 mb located southwest of James Bay.