#ElNino onset is likely imminent. Currently there are very warm subsurface temperature anomalies and hints of another downwelling (warming) oceanic Kelvin wave. High chance of a robust #ElNino is why CSU's forecast is for a near-normal season, despite an extremely warm Atlantic. pic.twitter.com/pOoz7bLg8t

— Philip Klotzbach (@philklotzbach) June 1, 2023