Marine Synopsis for the Great Lakes and St. Lawrence River (On)
* NOTE: Corrected and/or amended bulletins are listed first *
FQCN10 CWTO 020700 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 Wednesday 2 July 2025 for today tonight and Thursday. The next scheduled synopsis will be issued at 10:30 a.m. EDT. Systems position. At 3:00 a.m. EDT today ridge located on a line north-south over North Dakota. By 3:00 a.m. EDT Thursday ridge located on a line north-south over Thunder Bay. At 3:00 a.m. EDT today cold front located on a line northeast-southwest over northern Ontario. By 3:00 a.m. EDT Thursday cold front located on a line east-west over Wawa. End
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