I have never heard of this before and if it is true; it would have to have been damn cold for a very long time.
Michigan has had the coldest winter in decades. Water expands to freeze, and at Macinaw City the water in Lake Huron below the surface ice was supercooled. It expanded to break through the surface ice and froze into this incredible wave.
This wave phenomena is seen in Antarctica, but in Michigan? Yes, it’s been quite a winter!
Hate to be Mr. Buzzkill, but it’s a hoax.
http://urbanlegends.about.com/library/bl_frozen_wave.htm
Yeah I know – I asked my friend who lived near Lake Huron for many years and he said it never happened in all the time he lived there…so it goes