La Niña a possibility

At the end of March 2007, the El Niño event of the latter half of 2006 had ended and Pacific-basin-wide conditions were neutral. Despite being at the time of year when it is most difficult to predict future developments, there were sufficient indications to suggest that a transition to La Niña had recently become a distinct possibility.  This transition was generally considered by experts to have some, though weak, chance of developing in the following two-three months. At this time, re-development of El Niño was considered an unlikely outcome over the next few months.

See the latest WMO El Niño/La Niña update (30 March 2007)

WMO facilitates research into climate phenomena and their impacts, including El Niño and La Niña.

Moored ocean buoys provide real-time data for improved detection, understanding and
prediction of El Niño and La Niña events.