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Cornwall to Montréal

Forecast

Marine Forecast

Issued 03:00 AM EST 10 December 2019

Today Tonight and Wednesday.

Gale warning in effect.

Wind southerly 15 to 25 knots increasing to southwest 25 to 35 early this morning then diminishing to westerly 15 to 25 this afternoon. Wind diminishing to northwest 10 to 15 this evening then becoming light near midnight. Wind increasing to southwest 15 to 25 Wednesday afternoon.

Periods of rain ending this afternoon. Flurries Wednesday late in the day. Visibility 1 mile or less in flurries.

High today plus 9. Low tonight minus 12. High Wednesday minus 4.

Extended Forecast

Issued 06:00 AM EST 10 December 2019
Thursday Wind southwest 15 to 25 knots diminishing to southwest 10 to 15 in the morning.
Friday Wind southeasterly 15 knots.
Saturday Wind easterly 10 to 15 knots.

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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 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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Warnings

Warnings (In effect)

Gale warning in effect

Cornwall to Montréal

Issued 03:00 AM EST 10 December 2019

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 3:00 AM EST 10 December 2019 Today Tonight and Wednesday At 3:00 a.m. EST today low 988 mb located north of Lake Saint-Jean.
By midnight EST tonight departing low 979 mb located over Labrador
Sea.

At 3:00 a.m. EST today cold front from low located on a line
northeast-southwest over Lake Erie.
By midnight EST tonight departing cold front from low located on
a line northeast-southwest over the Gulf of St. Lawrence.

At midnight EST tonight ridge located on a line north-south over
Lake Ontario.
By 7:00 p.m. EST Wednesday ridge located on a line north-south
over Pointe-des-Monts.

At 1:00 p.m. EST Wednesday trough located on a line
northeast-southwest over Lake Huron.
By 7:00 p.m. EST Wednesday trough located on a line
northeast-southwest over Lake Ontario.

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