El Niño

El Niño occurs when the ocean current off the coast of Ecuador and Peru warms, causing dramatic changes in weather patterns.  El Niño is a fairly common occurrance – typically every 3 to 7 years.

La Niña

La Niña is the opposite of El Niño.  La Niña occurs when the ocean current off the coast of Ecuador and Peru cool, causing dramatic changes in weather patterns.