Eastern Lake Ontario
Forecast
Marine Forecast
Issued 03:00 AM EDT 11 April 2021
Today Tonight and Monday.
Wind southeast 15 knots backing to east 15 this morning then veering to southeast 15 this afternoon. Wind backing to east 15 this evening then increasing to east 20 near midnight. Wind east 20 Monday.
Showers and fog patches beginning this morning. Risk of thunderstorms today and early this evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EDT 11 April 2021
Today Tonight and Monday.
Waves one half to one metre building to one and one half metres
overnight.
Extended Forecast
Issued 03:00 AM EDT 11 April 2021
Tuesday
Wind east 15 knots diminishing to light in the
morning then becoming west 15 late in the day.
Wednesday
Wind west 15 knots.
Thursday
Wind light becoming west 15 knots.
Ice Forecast*
Issued 12:00 PM EDT 10 April 2021 Today Tonight and Sunday Open water.
*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 10 April 2021 Today Tonight and SundayIce Coverage
Open water.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 11 April 2021 Today Tonight and Monday At 3:00 a.m. EDT today low 991 mb located over northern Illinois.By 3:00 a.m. EDT Monday low 1001 mb located over northern Lake
Michigan.
At 3:00 a.m. EDT today quasi-stationary trough from low located
on a line northwest-southeast over Lake Erie.
Great Lakes - Lake Erie and Lake Ontario Area
Another Region
What we are doing
Weather Forecasts
Weather Alerts
Weather Resources
- Date modified: