Tornado & Lightning
Lightning can serve as a natural sensing tool that allows scientists to understand what else could be happening in a storm
Image Credit: F. Smith
A Lenticular Cloud over New Zealand
What's happening above those mountains? Several clouds are stacked up into one striking lenticular cloud. Normally, air moves much more horizontally than it does vertically. Sometimes, however, such as when wind comes off of a mountain or a hill, relatively strong vertical oscillations take place as the air stabilizes. The dry air at the top of an oscillation may be quite stratified in moisture content, and hence forms clouds at each layer where the air saturates with moisture. The result can be a lenticular cloud with a strongly layered appearance. This picture was taken in 2002 looking southwest over the Tararua Range mountains from North Island, New Zealand. Image Credit & Copyright: Chris Picking Explanation from: http://apod.nasa.gov/apod/ap090121.html
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