[youtube]http://www.youtube.com/watch?v=ssn2kmNf0ME[/youtube]
A rare fire tornado has been seen in the Brazilian state of Sao Paolo. A whirlwind of flame, spiraling several meters high, danced across burning fields, bringing traffic to a halt on a nearby highway. This unusual phenomenon has been caused by a combination of wildfires and strong dry winds following weeks of drought in the country.