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Southern Lake Huron

Forecast

Marine Forecast

Issued 10:30 AM EDT 18 August 2019

Today Tonight and Monday.

Strong wind warning in effect. Squall watch in effect.

Wind south 15 knots increasing to southwest 20 early this evening with gusts to 50 near thunderstorms. Wind becoming southwest 25 late this evening with gusts to 50 near thunderstorms. Wind diminishing to west 15 late overnight then increasing to northwest 20 Monday morning. Wind diminishing to northwest 15 near noon Monday and to variable 10 Monday evening.

Showers beginning early this evening and ending late overnight with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 18 August 2019
Today Tonight and Monday. Waves one half metre building to one this evening then subsiding to one half metre or less Monday afternoon.

Extended Forecast

Issued 03:00 AM EDT 18 August 2019
Tuesday Wind light.
Wednesday Wind south 15 knots increasing to northwest 20.
Thursday Wind light becoming northwest 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 19 May 2019 Forecasts available to mariners upon request.

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

  

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Erie and Lake Ontario 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 Killarney 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 Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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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 19 May 2019

Ice Coverage

Forecasts available to mariners upon request.

Ice Forecasts

Lake Michigan

Issued 12:00 PM EDT 19 May 2019

Ice Coverage

Forecasts available to mariners upon request.

Warnings

Warnings (In effect)

Squall warning in effect

Southern Lake Huron

Issued 3:00 PM EDT 18 August 2019 Squalls with wind gusts up to 55 knots, frequent lightning and poor to very poor visibility in thunderstorms heavy at times are expected or occurring in the area.

A line of thunderstorms north of Sarnia is extending northwestward and is moving northeast at 40 knots. These thunderstorms are expected to produce wind gusts near 55 knots.

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 2:07 PM EDT 18 August 2019

'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

Southern Lake Huron

Issued 2:05 PM EDT 18 August 2019 Conditions are favourable for the development of squalls with wind gusts up to 50 knots this afternoon and evening.

Thunderstorms over the Lake St. Clair area are expected to keep tracking east this afternoon and 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.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 18 August 2019 Today Tonight and Monday At 10:30 a.m. EDT today cold front located west of Lake Nipigon.
By 10:30 a.m. EDT Monday cold front located on a line
northeast-southwest over southern Ontario.

At 10:30 a.m. EDT today high 1013 mb located over South Dakota.
By 10:30 a.m. EDT Monday high 1017 mb located over Wisconsin.

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