Floundering El Ninos Make for Fickle Forecasts

Since May 2009, the tropical Pacific Ocean has switched from a cool pattern of ocean circulation known as La Ni�a to her warmer sibling, El Ni�o. This cyclical warming of the ocean waters in the central and eastern tropical Pacific generally occurs every three to seven years, and is linked with changes in the strength [...]

Full story at http://spacefellowship.com/2009/09/29/floundering-el-ninos-make-for-fickle-forecasts/