Wave Height Forecasts for St. Lawrence River (Isle-aux-Coudres to Anticosti)
* NOTE: Corrected and/or amended bulletins are listed first *
FQCN23 CWUL 100700 Wave height forecasts for 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 forecast will be issued at 3:00 p.m. EDT. Forecast values are combined wind wave and swell heights. Highest waves may be more than twice forecast values. Wave heights may vary considerably due to shoreline and depth effects. L'Isle-aux-Coudres to Tadoussac. Seas 1 metre or less. Tadoussac to Pointe à Michel. Seas 1 metre building to 1 to 2 Sunday afternoon. Pointe à Michel to Pointe-des-Monts. Seas 1 to 2 metres subsiding to 1 or less early this evening. Pointe-des-Monts to Anticosti - northern half. Seas 1 to 2 metres subsiding to 1 or less overnight. Pointe-des-Monts to Anticosti - southern half. Seas 2 to 3 metres subsiding to 1 to 2 this evening and to 1 or less Sunday morning. End $$$$^^
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