El Niņo is an oscillation of the ocean-atmosphere system in the tropical Pacific having important consequences for weather around the globe.
La Niņa is characterized by unusually cold ocean temperatures in the Equatorial Pacific, compared to El Niņo, which is characterized by unusually warm ocean temperatures in the Equatorial Pacific.
What is El Niņo?
What is La Niņa?
What is the Current Status of ENSO?
What is the Official NOAA ENSO Forecast? - graphic - text
What is the current trend of the ENSO Index?
How did the ENSO Index evolve during Strong La Niņa Events?
Animation of 1997-98 Pacific Sea Surface Temperature Anomalies - Compared to Some Recent El Niņo Events - Compared to Some Recent La Niņa Events
What are the Effects of El Niņo on the District?
What are the Effects of La Niņa on the District? (Short Answer: A Dry Winter)
Other ENSO/El Niņo/La Niņa Frequently Asked Questions?
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