Geography: winter forest fires

Self-tutoring about geography: the tutor mentions the idea of winter forest fires.

Apparently, winter forest fires are a known phenomenon. I’ve never heard of them until today, so was surprised.

In particular, the article I read, from Radio-Canada, explains that a forest fire can continue to burn underground and thereby migrate. This is more likely to happen in a place where there’s peat moss.

The result can be a forest fire during winter time, while there’s snow on the ground. Such is my understanding.