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M$3 Answers
Therefore it comes and goes ever once in a while. It should be back, but with the increased ocean temperatures and decreased salinity i guess its not guaranteed (Global Warming).
El Niño and La Niña are officially defined as sustained sea surface temperature anomalies of magnitude greater than 0.5°C across the central tropical Pacific Ocean. When the condition is met for a period of less than five months, it is classified as El Niño or La Niña conditions; if the anomaly persists for five months or longer, it is classified as an El Niño or La Niña episode.
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M$You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$Why December? because the temperature change initiated in the central Pacific Ocean triggers the anomaly which usually presents itself at that time of the year in front of the Pacific coast of Southamerican countries (Colombia, Ecuador, Peru and Chile), thus it was called "El Niño" because in Spanish language means "The Boy", as in the coming of a baby boy... baby Jesus who was born in December.
As for its next appearance, no body knows for sure. It all depends on the upcoming winter which will set the parameters to analyze if one it’s going to present next year. So far the next "El Niño" predicted to be very severe with a drought event is spected around 2012 in the island of Papua New Guinea, according with the Pacific Islands Report from the Pacific Islands Development Program/East-West Center.
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