Weak El Niño conditions continue, mainly focused across the central and western Pacific. The past month has seen a volatility rollercoaster in El Niño indices, as weak atmospheric feedback to this non-traditional +ENSO leaves the event close to collapse in early summer.
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The equatorial Pacific remains in a neutral-positive state. While atmospheric measures of ENSO state are slowly but steadily shifting towards Niño-like teleconnections, SST anomalies themselves cooled slightly over the past 6 weeks. This favors the slower development of a Central Pacific +ENSO event this fall.