Lake St. Clair

Forecast

Marine Forecast

Issued 12:56 PM EDT 17 August 2017

Today Tonight and Friday.

Strong wind warning in effect. Squall watch in effect.

Wind south 15 knots with gusts to 50 near thunderstorms today. Wind becoming southwest 15 near midnight then increasing to southwest 20 Friday morning. Wind veering to west 20 Friday afternoon.

Showers with a risk of thunderstorms changing to chance of showers overnight and Friday morning.

Waves

Issued 10:30 AM EDT 17 August 2017
Today Tonight and Friday. Waves one half metre or less building to one near noon Friday.

Extended Forecast

Issued 03:00 AM EDT 17 August 2017
Saturday Wind west 15 knots diminishing to light late in the day.
Sunday Wind light.
Monday Wind light.

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Weather Conditions

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Map of Great Lakes - Lake Huron marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Port Weller St. Catharines Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Municipal Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Killarney Western Islands Cove Island Long Point Port Colborne Erieau Point Pelee
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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 27 April 2017 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Lake St. Clair

Issued 1:06 PM EDT 17 August 2017

'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

Lake St. Clair

Issued 1:06 PM EDT 17 August 2017 Conditions are favourable for the development of squalls this afternoon with wind gusts up to 50 knots and frequent lightning.

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.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 17 August 2017 Today Tonight and Friday At 10:30 a.m. EDT today ridge located on a line north-south
over Ottawa.
By 10:30 a.m. EDT Friday ridge located on a line north-south over
New Brunswick.

At 10:30 a.m. EDT today low 998 mb located on a line north-south
over western Wisconsin.
By 10:30 a.m. EDT Friday low 999 mb located over northern Lake
Huron.

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Lightning Safety

When thunder roars, GO INDOORS!

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