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Wave Height Forecasts for the Great Lakes and St. Lawrence River (On)


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

 
FQCN23 CWTO 302230
Wave height forecasts for the Canadian portion of the Great Lakes
issued by Environment Canada at 6:30 p.m. EDT Sunday 30 March 2025
for tonight and Monday.
The next scheduled forecast will be issued at 3:00 a.m. EDT Monday.

Wave heights are for offshore and are forecast from trough to crest.
Nearshore waves may vary considerably due to shoreline effects.

Western Lake Superior.
Waves 2 metres subsiding to 1 to 1.5 late overnight.

Eastern Lake Superior.
Waves 2 metres subsiding to 1.5 Monday evening.

Whitefish Bay.
Mainly ice covered.

Northern Lake Huron.
Waves 1.5 metres subsiding to 1 near noon Monday then building to 1.5
Monday evening.

Southern Lake Huron.
Waves 1 to 1.5 metres building to 2 near midnight then subsiding to 1
to 1.5 early Monday morning. Waves building to 2 near noon Monday.

Northern Georgian Bay.
Over open water waves 1 metre building to 1.5 this evening then
subsiding to 1 Monday morning.

Southern Georgian Bay.
Over open water waves 1 to 1.5 metres subsiding to 1 Monday
afternoon.

Lake St. Clair.
Waves 0.5 to 1 metre subsiding to 0.5 early Monday morning.

Western Lake Erie.
Waves 1 to 1.5 metres subsiding to 0.5 to 1 near noon Monday.

Eastern Lake Erie.
Over open water waves 0.5 metres or less building to 0.5 to 1 this
evening and to 1 to 1.5 late overnight. Waves subsiding to 0.5 to 1
Monday evening.

Western Lake Ontario.
Waves 0.5 to 1 metre building to 1 to 1.5 early Monday morning.

Eastern Lake Ontario.
Waves 0.5 metres or less building to 0.5 to 1 near midnight and to 1
to 1.5 early Monday morning.

End
$$$$^^

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