The Wall Fire has been burning in Butte County, California since Friday.
The Nevada Seismological Laboratory at the University of Nevada took breathtaking video from the Lake Oroville Dam.
It shows a whirling inferno as flames cross a ridge. That flaming whirl is a firenado.
The Wall Fire started about 24 hours before this video was taken. It continues to burn, charring nearly 6,000 acres so far.