I think the contained temperatures present in a wildfire front are very high. I really suspect that if you do not get out of their way. Or cannot get well underground there are going to be serious issues.

If they indeed can travel at speeds quoted especially. A type of flash fire has developed that will boil small volumes of water off at an almost flash rate.

I have not watched any forest fires close up and these are generally slower. But just to watch a large evergreen tree go up as one did in our neighborhood. Is quite a thing to observe.

It was almost explosive once it really got going. The time constant from start to finish was a lot quicker than I would have expected. The actual trunk burning will probably persist after. Yet if you look at an area that has had a forest fire and the trees are dead. The trunks are usually still standing but damaged. They do not regrow either I think.

A wildfire possibly is more like a blowtorch. So hot it almost instantly ignites anything in it's path at times. I was also thinking it might even create it's own wind. Like adding more oxygen that normally available.