Eastern Lake Ontario


Marine Forecast

Issued 03:00 AM EDT 29 June 2017

Today Tonight and Friday.

Wind south 10 knots increasing to south 15 this morning then veering to southwest 15 Friday afternoon.

A few showers beginning this morning with a risk of thunderstorms.


Issued 03:00 AM EDT 29 June 2017
Today Tonight and Friday. Waves less than one half metre building to one near noon.

Extended Forecast

Issued 06:30 PM EDT 28 June 2017
Friday Wind southwest 20 knots diminishing to light late in the day.
Saturday Wind southwest 15 knots.
Sunday Wind southwest 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 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
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.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 3:00 AM EDT 29 June 2017 Today Tonight and Friday At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over Virginia.
By 3:00 a.m. EDT Friday ridge located on a line northeast-southwest
over the Eastern Seaboard.

At 3:00 a.m. EDT today low 999 mb located over northern Wisconsin.
By 3:00 a.m. EDT Friday low 1004 mb located over northern Lake

Great Lakes - Lake Huron Area

Another Region

What we are doing

Date modified: