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What does El Nino mean for weather?

El Niño disrupts the normal, seasonal weather patterns in many parts of the globe. Between December and February Ecuador and northern Peru, which are typically dry, experience dramatic increases in rainfall that results in coastal flooding and erosion. El Niño events are associated with droughts in Indonesia, Australia, northeastern South America, and southeastern Africa. Parts of northern Asia and northern North America are warmer than usual and experience mild winter weather. In addition, El Niño events are associated with reduced tropical cyclone (hurricane) development in the North Atlantic Ocean and increased tropical cyclone development in the eastern Pacific Ocean.