irregular, recurring weather system that features a warm, eastern-flowing ocean current in the eastern Pacific Ocean. Read more in the NG Education Encyclopedia

Warm-water conditions off the western tropical coasts of the Americas, occurring irregularly but usually around Christmastime, caused by weakening trade winds and causing depleted fisheries, heavier-t [..]

a periodic reversal in the usual pressure, wind and precipitation patterns of the tropical Pacific region which can have severe implications for human activity. Excellent background and explanations h [..]

A warming of the ocean current along the coasts of Peru and Ecuador that is generally associated with dramatic changes in the weather patterns of the region; a major El Niño event generally occurs eve [..]

A climatic change marked by shifting of a large warm water pool from the western Pacific Ocean towards the east. Nutrient-rich upwelling currents along the coast of South America are blocked by this sea change and fisheries fail catastrophically. An El Niño event normally is accompanied by droughts in Australia and Southeast Asia together with heav [..]

A variation in worldwide weather patterns that recurs every three to five years and that is caused by changes in the wind, conditions over the Eastern Pacific Oceans.

A warm ocean current setting south along the coast of Ecuador, so called because it generally develops just after Christmas. In exceptional years, concurrently with a southerly shift in the tropical r [..]

disturbance of wind patterns and ocean currents in the Pacific Ocean that causes temporary climate changes in many parts of the world. embryo -

An irregular variation of ocean current that from January to March flows off the west coast of South America, carrying warm, low-salinity, nutrient-poor water to the south. It does not usually extend farther than a few degrees south of the equator, but occasionally it does penetrate beyond 12 degrees S, displacing the relatively cold Peru Current. [..]

The cyclical warming of East Pacific Ocean sea water temperatures off the western coast of South America that can result in significant changes in weather patterns in the United States and elsewhere. [..]

El Nino is a warm surface current that usually appears in the Pacific Ocean off Ecuador and Peru around Christmas, and lasts about three months. Every three to seven years it remains for as long as a [..]

The term El Niño refers to the large-scale, ocean-atmosphere climate phenomenon linked to a periodic warming in sea-surface temperatures across the central and east-central equatorial Pacific Ocean. (According to NOAA.)

A Climate pattern characterized by unusually warm Pacific Ocean Water Temperatures.

A condition caused by the decrease in atmospheric pressure over the Eastern Pacific Ocean, weakening the prevailing westerly winds and resulting in warm waters and less nutrient replacement from cold, [..]

Go to the El Nino Info Page

An extensive ocean warning that begins along the coast of Peru and Equador.

The cyclical warming of East Pacific Ocean sea water temperatures off the western coast of South America that can result in significant changes in weather patterns in the United States and elsewhere. This occurs when warm equatorial waters move in and displace the colder waters of the Humbolt Current, cutting off the upwelling process.

A major warming of the equatorial waters in the eastern Pacific Ocean. El Nino events usually occur every 3 to 7 years, and are related to shifts in global weather

A major warming of the equatorial waters in the Pacific Ocean. El Nino events usually occur every 3 to 7 years, and are characterized by shifts in "normal" weather patterns.

The cyclical warming of East Pacific Ocean sea water temperatures off the western coast of South America that can result in significant changes in weather patterns in the United States and elsewhere. [..]

A warming of the East Pacific Ocean sea water temperatures off the western coast of South America that can result in changes in weather patterns in Australia and around the world.  The impacts for Aus [..]

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