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NEW YORK (Reuters) – The La Nina weather anomaly blamed for the devastating floods in Australia will keep weakening in the coming months, the U.S. Climate Prediction Center predicted Thursday.

In a monthly report, the agency said a majority of weather computer models showed a return to neutral conditions by May-June 2011, while forecasts for the late summer and beyond remained highly uncertain.

CPC also said there was an enhanced chance for below-average rain across much of the Southern United States, while above-average precipitation was favored for the northern Plains.

CPC is an office of the U.S. National Oceanic Atmospheric Administration.

(Reporting by Chris Kelly; Editing by John Picinich)