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El Nino goes wild.

El Nino--which literally means "the boy" in Spanish--is a troublemaker. El Nino is a vast pool of overly warm water, brought about by periodic changes in atmospheric pressure and ocean currents in the equatorial Pacific Ocean.

When sea-surface temperatures rise above normal, bad-boy El Nino wreaks havoc on worldwide weather. The warmer ocan pumps more energy and moisture into the atmosphere, which in turn alters global wind and rainfall patterns. Until the 1990s, El Nino usually showed up every two to seven years. But recently overly warm waters are the norm. Scientists don't know if global warming is the cause.

Here in the U.S., the Climate Prediction Center forecasts higher-than-normal rainfall in the west and South this winter, and warmer temperatures for the West Coast and northern states. Check out this map to see how El Nino could affect where you live. Save it to check whether the predictions came true.
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Title Annotation:two maps with temperature and precipitation forecast for the US as influenced by the El Nino current, are presented
Author:Chang, Maria L.
Publication:Science World
Article Type:Brief Article
Date:Nov 17, 1997
Words:152
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