Marine Forecast marine forecasts for the Great Lakes and the Ontario portion of the St. Lawrence river issued by environment Canada from the regional weather Centre in Thunder Bay at 3.00 am EDT Friday 4 may 2001 for the period ending at 3.00 am Saturday with an outlook for the following 24 hours. The next scheduled forecast will be issued at 10.30 am today.
Winds are for Mid Lake.
Wave heights are for offshore and are forecast from trough to crest. Nearshore winds and waves may vary considerably due to shoreline effects. Western Lake Superior. Wind northerly 10 to 15 knots diminishing to variable 10 near noon. Waves less than 1 metre.