Ice Forecasts

Lake Huron

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

Ice Forecasts

Lake Michigan

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

Warnings (In effect)

Strong wind warning in effect

Southern Lake Huron

Issued 10:30 AM EDT 09 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.

Watches (In effect)

Squall watch in effect

Southern Lake Huron

Issued 2:39 PM EDT 09 September 2026 Conditions are favourable for the development of squalls with wind gusts up to 40 knots and frequent lightning.

Scattered showers and thunderstorms capable of producing wind gusts up to 40 knots are expected to continue through this afternoon and perhaps into the early evening.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway. Consider delaying or postponing travel in areas under the Squall Watch.

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 9 September 2026 Today Tonight and Thursday At 10:30 a.m. EDT today departing ridge located on a line
northeast-southwest over the Gulf of St. Lawrence.

At 10:30 a.m. EDT today low 986 mb located over southern Hudson Bay.
By 10:30 a.m. EDT Thursday low 982 mb located east of Hudson Bay.

At 10:30 a.m. EDT today cold front from low located on a line
northeast-southwest over eastern Lake Superior.
By 10:30 a.m. EDT Thursday cold front from low located on a line
northeast-southwest over New England.