Following is the text of the video. This is a "firenado," or fire tornado. It formed out of wildfires in Arganil, Portugal. Firenados are swirling columns of fire, but they aren't really tornados.

Carpenter said fire tornadoes are hard to document, and the NWS doesn't issue tornado warnings for the phenomenon. More From ...

In this case, scientists think a fire tornado could have been inside the ... like clouds called pyrocumulonimbus clouds as plumes build into the atmosphere. "When you think about a big fire ...