El Niño and La Niña (Encore)
Everything Everywhere Daily
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The El Nino Effect
During an El Nino event, warm water from the equator will move eastward towards South America. Because the Pacific Ocean is so big, this change in warm water currents can change weather patterns globally. Northern states in the United States and western Canada tend to have warmer winters while southern states tend to have more precipitation. In Antarctica, the Ross Sea, which is south of the Pacific Ocean, will see less ice formation and higher temperatures. The Anti-El Nino or La Nino events occur every few years but are not as predictable because they don't always coincide with each other.
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