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La Nina Reappears in Pacific

La Nina Reappears in Pacific

News
By the SkiNet News Desk
posted: 01/01/2000

Pasadena, CA, Oct. 22 (AP)--Scientists are predicting a wet winter across the Northwest and a dry one in the Southwest after discovering the reappearance of La Nina in the Pacific Ocean.

A U.S.-French satellite earlier this month detected a pool of unusually cool water in the eastern North Pacific, and warm water in the western and mid-latitude Pacific.

``These unbalanced conditions will undoubtedly exert a very strong influence on climate over North America this fall and winter,'' oceanographer William Patzert of the Jet Propulsion Laboratory said this week.

The observations by the U.S.-French Topex-Poseidon satellite came three months after La Nina appeared to be fading away.

La Nina is characterized by unusually cold sea-surface temperatures in the eastern and central Pacific, which trigger atmospheric patterns that influence weather around the world. La Nina is linked to cooler conditions in central North America, and dry, warm conditions in the Southern states.

Last year's La Nina contributed to a series of huge storms that blasted Washington, Oregon and northern California with hurricane-force winds, heavy rains and mountain snows, and powerful storms elsewhere in the world.

Patzert called conditions ``ripe'' for a stormy winter in the Pacific Northwest and a relatively dry winter in the Southwest.

``Clearly, these unusual conditions, which have persisted for 2 1/2 years, will not be returning to normal anytime soon,'' Patzert said. ``This climate imbalance is big and we're definitely going through a decade of wild, climatic behavior.''

Last winter's La Nina followed the historic 1997-98 El Nino, which was blamed for heavy snow in the West, massive flooding in Africa and drought in Asia.

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