It's thunder. It's snow. It's … thundersnow?

LANSING, Mich. (WLNS) – Thunder is a common occurrence in the summer, but on rare occasions, it can come with intense bursts of snow in the winter.Thundersnow is sometimes observed in lake-effect systems, which is pertinent to residents of Michigan and Buffalo, New York, for example.Thundersnow can be seen off of Lake Erie and Lake Ontario — the two shallowest of the Great Lakes — but the conditions have to be right.First, there must be cold air from a lake-effect system blowin