La Nina winding down, but still could impact Pacific NW

La Nina winding down, but still could impact Pacific NW

La Nina winding down, but still could impact Pacific NW

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by Associated Press

NWCN.com

Posted on May 5, 2011 at 1:19 PM

Updated Thursday, May 5 at 2:08 PM

WASHINGTON, D.C. -  Government climate researchers say the La Nina climate condition in the Pacific Ocean is winding down and could end by next month. La Nina and its opposite, El Nino, can affect weather around the world.

La Nina is marked by colder than normal water in the central Pacific while in El Nino, the water is warmer than usual. Either condition can affect the high-level winds that steer weather movement.

The National Center for Environmental Prediction said La Nina is expected to wind down during the May-June period.

However, the center said the condition could continue to have impacts even as it diminishes, including below-average rainfall across southeastern Texas and Louisiana and cooler than average temperatures for the Pacific Northwest.

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