There is no huge inland lake in Canada behind the ice dam. They must mean something other than what the word 'similar' means.
I am posting from a place in Canada that was under one mile of ice at the Last Glacial Maximum.
It is possible that 13,000 years ago, a great lake had formed behind the edges of the massive ice sheets, which would have caused massive floods when the natural (SUV-Free) dams gave way.
That situation 13,000 years ago, has no bearing on the situation today.
Are there any intelligent reporters left?