As of mid-April 2026, the equatorial Pacific is in an ENSO-neutral state but rapidly transitioning toward El Niño. The latest CCSR/IRI ENSO plume forecast gives a 70% chance of El Niño developing in April–June 2026 versus 30% for continued neutrality, with El Niño remaining dominant through the rest of 2026 at high probabilities of 88–94%.
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