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

Choose a Province or Territory

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

 
FQCN23 CWTO 181530
Wave height forecasts for the Canadian portion of the Great Lakes
issued by Environment Canada at 10:30 a.m. EST Wednesday 18 December
2024 for today tonight and Thursday.
The next scheduled forecast will be issued at 6:30 p.m. EST.

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 this afternoon and to 0.5 to 1
this evening. Waves subsiding to 0.5 or less late overnight.

Eastern Lake Superior.
Waves 1.5 metres subsiding to 0.5 to 1 this evening and to 0.5 or
less early Thursday morning.

Whitefish Bay.
Waves 1 to 1.5 metres.

Northern Lake Huron.
Waves 0.5 to 1 metre building to 1 to 1.5 this afternoon then
subsiding to 0.5 to 1 near noon Thursday. Waves subsiding to 0.5 or
less Thursday evening.

Southern Lake Huron.
Waves 0.5 metres or less building to 0.5 to 1 this afternoon and to
1.5 this evening. Waves subsiding to 0.5 to 1 early Thursday morning
and to 0.5 or less Thursday evening.

Georgian Bay.
Waves 0.5 to 1 metre building to 1 to 1.5 this evening then subsiding
to 0.5 to 1 Thursday morning. Waves subsiding to 0.5 or less Thursday
afternoon.

Lake St. Clair.
Over open water waves 0.5 metres or less.

Western Lake Erie.
Waves 0.5 metres or less building to 0.5 to 1 early this evening then
subsiding to 0.5 or less early Thursday morning.

Eastern Lake Erie.
Waves 0.5 metres or less building to 0.5 to 1 this afternoon then
subsiding to 0.5 or less Thursday afternoon.

Western Lake Ontario.
Waves 0.5 metres or less building to 0.5 to 1 this evening then
subsiding to 0.5 or less near noon Thursday.

Eastern Lake Ontario.
Waves 0.5 to 1 metre building to 1 to 1.5 late overnight then
subsiding to 0.5 to 1 near noon Thursday. Waves subsiding to 0.5 or
less Thursday evening.

End
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