Western Lake Ontario

Forecast

Marine Forecast

Issued 03:00 AM EDT 22 October 2017

Today Tonight and Monday.

Strong wind warning in effect.

Wind south 10 knots backing to southeast 10 this afternoon then increasing to south 15 this evening. Wind diminishing to southeast 10 overnight then increasing to southeast 20 Monday evening.

A few showers beginning Monday evening.

Waves

Issued 03:00 AM EDT 22 October 2017
Today Tonight and Monday. Waves one half metre or less building to one Monday evening.

Extended Forecast

Issued 03:00 AM EDT 22 October 2017
Tuesday Wind southeast 20 knots veering to southwest 25 in the morning.
Wednesday Wind southwest 25 knots.
Thursday Wind west 15 knots.

Stay connected

ATOM

Weather Conditions

Skip Image

Zoom-in to make a selection

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 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 Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Killarney Western Islands Cove Island Long Point Port Colborne Erieau Point Pelee
Legend:
buoy Buoy
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

Western Lake Ontario

Issued 03:00 AM EDT 22 October 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 22 October 2017 Today Tonight and Monday At 3:00 a.m. EDT today ridge located on a line north-south over
New Brunswick.
By 3:00 a.m. EDT Monday ridge located on a line north-south over
the Gulf of St. Lawrence.

At 3:00 a.m. EDT today low 990 mb located over northeastern
Manitoba.
By 3:00 a.m. EDT Monday low 970 mb located north of Hudson Bay.

At 3:00 a.m. EDT today cold front located on a line north-south
over western Wisconsin.
By 3:00 a.m. EDT Monday cold front located on a line
northeast-southwest over central Lake Huron.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

What we are doing

Features

Summer 2017: Significant weather across Canada

By analyzing weather events, ECCC is collecting more information as to how our climate is changing.

Date modified: