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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 May 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind south 15 knots increasing to south 20 early this morning then veering to southwest 20 near noon. Wind veering to northwest 25 this evening then to north 15 to 20 Wednesday afternoon.

Showers today and this evening with a risk of thunderstorms. Fog patches dissipating this evening.

Waves

Issued 10:30 AM EDT 19 May 2026
Today Tonight and Wednesday. Waves 1 metre building to 1.5 late overnight.

Extended Forecast

Issued 03:00 AM EDT 19 May 2026
Thursday Wind north 15 knots diminishing to light in the morning then becoming north 15 late in the day.
Friday Wind north 15 knots diminishing to light.
Saturday Wind east 15 knots increasing to east 20.

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Map of Great Lakes - Lake Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

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

Warnings (In effect)

Squall warning in effect

Southern Lake Huron

Issued 2:59 PM EDT 19 May 2026 Squalls with wind gusts up to 50 knots are expected or occurring in the area.

Thunderstorms located over Lower Michigan are moving east at 45 knots and will move in after 3:30 P.M.

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.

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

Strong wind warning in effect

Southern Lake Huron

Issued 10:30 AM EDT 19 May 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 19 May 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today low 1005 mb located over eastern Lake
Superior.
By 10:30 a.m. EDT Wednesday low 997 mb located over central Quebec.

At 10:30 a.m. EDT today cold front located from Lake Superior
to Missouri.
By 10:30 a.m. EDT Wednesday cold front located on a line
northeast-southwest over the St. Lawrence River.

At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Manitoba.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over Minnesota.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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