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Publish Date: 16 February 2017
Current Situation and Outlook During the second half of 2016, tropical Pacific Ocean surface temperatures were at borderline weak La Niña/cool-neutral levels. Many atmospheric ENSO indicators also approached or exceeded...
Publish Date: 14 December 2017
Sea surface temperatures in the eastern tropical Pacific Ocean have recently cooled to weak La Niña levels. Similarly, most atmospheric indicators are now consistent with the early stages of a La Niña event. Climate models indicate that weak La Niña conditions are likely to persist into the first quarter of 2018. A return to ENSO-neutral conditions before early 2018 is less likely, while the emergence of El Niño before the second quarter of 2018 appears very remote. National Meteorological and Hydrological Services will continue to closely monitor changes in the state of ENSO over the coming...
Publish Date: 7 July 2017
ENSO neutral conditions currently prevail in the tropical Pacific Ocean, despite sea surface temperatures being near the El Niño threshold. Most climate models surveyed indicate that ENSO-neutral conditions will continue through July-September 2017, followed by a 50-60% chance of a continuation of ENSO-neutral during the subsequent months of 2017. The development of El Niño conditions is slightly less likely, while the emergence of La Niña appears unlikely. National Meteorological and Hydrological Services will continue to closely monitor changes in the state of ENSO over the coming months.