Issued 10:30 AM EDT 04 August 2021
Today Tonight and Thursday.
Wind light becoming south 10 knots early this evening then backing to southeast 10 near midnight. Wind increasing to south 15 near noon Thursday.
Zoom-in to make a selection
*Ice Forecast and Warnings also apply to U.S. waters
Ice ForecastsIssued 12:00 PM EDT 9 May 2021 Forecasts have ended for the season.
No watches or warnings in effect.
Technical Marine SynopsisIssued 10:30 AM EDT 4 August 2021 Today Tonight and Thursday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Georgian Bay.
By 10:30 a.m. EDT Thursday ridge located on a line north-south
over Lake Ontario.
At 10:30 a.m. EDT today trough located on a line northeast-southwest
over the Ontario - Manitoba border.
By 3:00 a.m. EDT Thursday trough located from James Bay to Lake
of the Woods.
Great Lakes - Lake Superior Area
- Arctic - Eastern Arctic
- Arctic - Western Arctic
- Atlantic - Labrador
- Atlantic - Maritimes
- Atlantic - Newfoundland
- Great Lakes - Lake Erie and Lake Ontario
- Great Lakes - Lake Huron
- Great Lakes - Lake Superior
What we are doing
- Date modified: