Fire tornadoes, also known as firenadoes ... Scientists have discovered that these violent whirlwinds form when intense heat from wildfires generates rising air currents, which twist into rotating ...

Firenados form because of conditions on the ground ... This is a "firenado," or fire tornado. It formed out of wildfires in Arganil, Portugal. Firenados are swirling columns of fire, but they ...

Little Rock's Fire Station 9 took a direct hit that day, and ever since, crews have put a lot of thought into how they want to rebuild it. This time around, they're including a tornado shelter.