Eastern Lake Ontario
Forecast
Marine Forecast
Issued 06:30 PM EDT 12 April 2021
Tonight and Tuesday.
Wind east 15 knots diminishing to east 10 early Tuesday morning then becoming light Tuesday afternoon.
Showers. Fog patches dissipating Tuesday morning. Fog patches reforming Tuesday evening.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 12 April 2021
Tonight and Tuesday.
Waves one metre subsiding to one half metre this evening and to
less than one half metre Tuesday morning.
Extended Forecast
Issued 06:30 PM EDT 12 April 2021
Wednesday
Wind light.
Thursday
Wind light increasing to west 20
knots.
Friday
Wind northeast 20 knots diminishing to
light.
Ice Forecast*
Issued 12:00 PM EDT 12 April 2021 Today Tonight and Tuesday Ice free.
*Ice Forecast and Warnings also apply to U.S. waters
Stay connected
Weather Conditions
Zoom-in to make a selection

Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Issued 12:00 PM EDT 12 April 2021 Today Tonight and TuesdayIce Coverage
Ice free.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 12 April 2021 Tonight and Tuesday At 6:30 p.m. EDT tonight low 1006 mb located over Duluth.By 6:30 p.m. EDT Tuesday weakening low 1012 mb located near the
Ontario - Minnesota border.
At 6:30 p.m. EDT tonight quasi-stationary trough from low located
on a line northwest-southeast over Lake Huron.
Great Lakes - Lake Erie and Lake Ontario Area
Another Region
What we are doing
Weather Forecasts
Weather Alerts
Weather Resources
- Date modified: