Volcano Plumes Spin Like Tornadoes

With Mount Redoubt spitting and sputtering this piece for LiveScience seems appropriate right about now:

The columns of ash and gas that spew from erupting volcanoes behave just like another force of nature, tornadoes, a new study suggests.

Volcanic plumes have been known to spawn waterspouts and dust devils, as well as sheaths of lightning around their roiling debris clouds, but scientists didn't know why.

Read the rest at LiveScience.