There is no forest fire, there is hardly anything left to burn there. This stuff is generally not deadly and all the terrible effects people mention are made up. Hence my comment. That a forest fire can be absolutely devastating is no question at all.

This is what it looks like when it hits steel. The steel cools it down rapidly and it stops burning.

Here is a picture of ground that was hit. No burning through (into the ground) or anything. It just sits and burns.

This is what it looks like when trenches are hit.