Apparently we are going to be hit with a “bomb cyclone” today. Waves on the Great Lakes will exceed 7m or 22 feet in places.
FQCN23 CWTO 280800
Wave height forecasts for the Canadian portion of the Great Lakes
issued by Environment Canada at 3:00 a.m. EST Sunday 28 December 2025
for today tonight and Monday.
The next scheduled forecast will be issued at 10:30 a.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 0.5 to 1 metre building to 2 this evening and to 3 to 5
overnight.
Eastern Lake Superior.
Waves 2 metres subsiding to 1 this morning then building to 2 to 3
early this evening. Waves building to 5 to 7 overnight then subsiding
to 3 to 5 near noon Monday.
Whitefish Bay.
Waves 0.5 to 1 metre building to 1 to 1.5 overnight and to 2 to 3
Monday morning. Waves building to 3 to 4 Monday afternoon.
Northern Lake Huron.
Waves 0.5 to 1 metre building to 1.5 this evening and to 2 to 3
overnight. Waves building to 3 to 4 Monday morning and to 4 to 6
Monday afternoon.
Southern Lake Huron.
Waves 0.5 to 1 metre building to 1.5 overnight and to 3 to 4 Monday
morning. Waves building to 4 to 6 Monday afternoon.
Northern Georgian Bay.
Waves 0.5 to 1 metre building to 1 to 1.5 this evening and to 2 to 3
Monday morning. Waves building to 3 to 4 Monday afternoon.
Southern Georgian Bay.
Waves 0.5 to 1 metre building to 1 to 1.5 overnight and to 2 to 3
Monday morning. Waves building to 3 to 5 Monday evening.
Lake St. Clair.
Over open water waves 0.5 metres or less building to 0.5 to 1
overnight.
Western Lake Erie.
Over open water waves 0.5 to 1 metre building to 1 to 1.5 this
evening and to 3 to 4 Monday morning. Waves building to 4 to 6 near
noon Monday then subsiding to 3 to 4 Monday evening.
Eastern Lake Erie.
Waves 0.5 metres or less building to 1 to 1.5 this evening and to 3
to 5 overnight. Waves building to 5 to 7 near noon Monday.
Western Lake Ontario.
Waves 0.5 to 1 metre building to 1 to 1.5 this afternoon and to 3 to
4 Monday morning. Waves building to 4 to 6 Monday afternoon.
Eastern Lake Ontario.
Waves 0.5 metres or less building to 0.5 to 1 this morning and to 1
to 1.5 this evening. Waves building to 3 to 5 near noon Monday and to
5 to 7 Monday evening.
End
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