Cornwall to Montréal


Marine Forecast

Issued 03:00 PM EDT 19 June 2018

Tonight and Wednesday.

Strong wind warning in effect.

Wind northwest 10 to 15 knots becoming light early this evening then increasing to southwest 10 to 15 early Wednesday morning. Wind increasing to southwest 15 to 25 near noon Wednesday then diminishing to light Wednesday evening.

Chance of showers Wednesday evening with a risk of thunderstorms.

Extended Forecast

Issued 06:00 PM EDT 19 June 2018
Thursday Wind northwest 10 to 15 knots diminishing to light in the afternoon.
Friday Wind southwest 10 to 15 knots.
Saturday Wind southerly 10 to 15 knots.

Stay connected


Weather Conditions

Skip Image

Zoom-in to make a selection

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 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
buoy Buoy
land station Land Station
Ice Conditions

Access this Bulletin from another source?


Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 3:00 PM EDT 19 June 2018

'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.


Technical Marine Synopsis

Issued 3:00 PM EDT 19 June 2018 Tonight and Wednesday At 3:00 p.m. EDT today ridge located on a line northeast-southwest
over Lake Superior.
By 8:00 a.m. EDT Wednesday departing ridge located on a line
northeast-southwest over Cape Cod.

At 3:00 p.m. EDT today cold front located on a line
northeast-southwest over James Bay.
By 8:00 p.m. EDT Wednesday cold front located from Natashquan to
New Brunswick then to Cornwall.

At 3:00 p.m. EDT today high located over western Hudson Bay.
By 8:00 p.m. EDT Wednesday high located over James Bay.

Great Lakes - Lake Huron Area

Another Region

What we are doing


Lightning Safety

When thunder roars, GO INDOORS!

Air Quality Health Index

Be Air Aware

Summer Severe Weather

Be prepared!

Date modified: