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Marine Synopsis for the Great Lakes and St. Lawrence River (On)


* NOTE: Corrected and/or amended bulletins are listed first *

 
FQCN10 CWTO 100700
Technical marine synopsis for the Canadian portion of the Great
Lakes and the Ontario portion of the St. Lawrence River issued by
Environment Canada at 3:00 a.m. EDT Saturday 10 October 2026 for
today tonight and Sunday.
The next scheduled synopsis will be issued at 10:30 a.m. EDT.

Systems position.
At 3:00 a.m. EDT today ridge from 1028 mb high located on a line
northwest-southeast over central Ontario.
By 3:00 a.m. EDT Sunday departing ridge from 1034 mb high located
on a line north-south over Maine.

By 3:00 a.m. EDT Sunday approaching trough located on a line
northeast-southwest over northwestern Ontario.

End

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