The U.S. weather forecasting agency has declared the advent of El Niño, and NASA says the natural, recurring phenomenon is bringing wetter conditions to the U.S. Southwest and drought to countries in the western Pacific, such as Indonesia and Australia.
El Niño, characterized by warmer-than-normal water temperatures in parts of the equatorial Pacific, made its return earlier this month. Observations of sea surface height from NASA's Sentinel-6 Michael Freilich satellite indicated that the 2026 event was continuing to strengthen.
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by Joji Xavier
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