This Kelvin wave is beginning to attenuate (weaken, dampen) as it passes the international dateline due to a resurgence of easterly trade winds the last few weeks and is weaker than 2014 at this longitude. We'll need to see another WWB the next month or so to give us a good shot to see an El Nino this summer, we're probably headed towards warm neutral conditions in any case by the end of spring once this Kelvin Wave reaches the eastern boundary region (west coast of South America).
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