Early El Nino Conditions
May Spell Big Weather Impact This Year

Indications are growing that an El Niño weather pattern may be forming in the Pacific Ocean, which could have a profound impact on global weather. READ MORE

 




These NASA satellite images are one indication of the potential development of an El Niño weather pattern this year in the Pacific Ocean. El Niño events develop when warmer ocean waters form in the Pacific. These images depict sea surface anomalies, with above average sea-surface height shown in various shades of brown. Above-average sea surface heights are an indication of warmer waters, which expand as temperatures rise. These two images compare conditions in 1997 — a year with one of the most powerful El Niño events of the 20th century — with conditions this May. Strong El Niño events have a major impact on global weather. (Image credit: NASA Earth Observatory)



 
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