Eastern Lake Ontario

Forecast

Marine Forecast

Issued 11:18 AM EDT 25 July 2016

Today Tonight and Tuesday

Squall watch in effect.

Wind southwest 15 knots with gusts to 35 near thunderstorms late this morning and early this afternoon. Wind becoming west 15 near midnight.

A few showers ending this afternoon with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 25 July 2016
Today Tonight and Tuesday Waves one metre.

Extended Forecast

Issued 03:00 AM EDT 25 July 2016
Wednesday Wind light.
Thursday Wind light.
Friday Wind northeast 15 knots diminishing to light late in the day.

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 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
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 7 May 2016 Forecasts have ended for the season.
Warnings

Watches (In effect)

Squall watch in effect

Eastern Lake Ontario

Issued 11:11 AM EDT 25 July 2016 Conditions are favourable for the development of squalls with wind gusts up to 40 knots, frequent lightning and hail.


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 25 July 2016 Today Tonight and Tuesday At 10:30 a.m. EDT today quasi-stationary low 1000 mb located over
James Bay.

At 10:30 a.m. EDT today cold front from low located on a line
north-south over Toronto.
By 10:30 a.m. EDT Tuesday cold front from low located on a line
northwest-southeast over New Brunswick.

At 10:30 a.m. EDT today quasi-stationary high 1019 mb located
over Iowa.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

What we are doing

Features

Get your weather, plan your day.

Extreme Heat Protection

Be Air Aware

Air Quality Health Index

Be weather wise!

UV Index and sun protection

Date modified: