La Nina present, 75 per cent chance seen through 2020 winter

Average sea surface temperature anomalies over the equatorial Pacific Ocean for the week centred on Sept. 2, 2020 compared to 1981-2010 base period. (

Reuters — La Nina conditions were present in August, and have a 75 per cent chance of continuing through the Northern Hemisphere winter of 2020-21, a U.S. government weather forecaster said on Thursday.

The La Nina pattern is characterized by unusually cold temperatures in the equatorial Pacific Ocean.

A borderline moderate La Nina event is favoured during the peak November-January season, the National Weather Service’s Climate Prediction Center (CPC) said in its monthly forecast.

The weather phenomenon last emerged during September-November season in 2017 and lasted through early 2018.

Anomalies known to occur during La Nina include colder-than-normal temperatures on the Prairies and above-average precipitation in British Columbia, Ontario and Quebec, according to Environment Canada.

— Reporting by Harshith Aranya in Bangalore.

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