Issued 10:30 AM EDT 23 July 2021
Today Tonight and Saturday.
Wind southwest 10 knots backing to southeast 10 this afternoon then increasing to south 15 late overnight. Wind veering to southwest 15 Saturday afternoon.
Showers Saturday with a risk of thunderstorms. Fog patches forming Saturday evening.
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*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 23 July 2021 Today Tonight and Saturday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Georgian Bay.
By 10:30 a.m. EDT Saturday ridge located on a line
northeast-southwest over the Eastern Seaboard.
At 10:30 a.m. EDT today trough located on a line north-south over
eastern North Dakota.
By 10:30 a.m. EDT Saturday trough located on a line
northeast-southwest over Lake Superior.
Great Lakes - Lake Erie and Lake Ontario 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
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