El Niño/La Niña Update (July 2010) Document 06 July 2010 Following the rapid dissipation of the 2009/10 El Niño in early May 2010, a brief period of neutral conditions prevailed, leading to the current state of borderline La Niña conditions. These borderline conditions are more likely than not to strengthen to become a basin-wide La Niña episode during the second half of 2010. It is also possible, but less likely, for neutral conditions to prevail during the remainder of 2010. Re-development of El Niño during the period is considered very unlikely. Download document Share: Document type: El NIño / La Niña Update