One clear-cut sign the atmosphere is transitioning to #ElNiño is the increased frequency of westerly wind anomalies (reduced trades) across the Equatorial Pacific. Two basin-wide WWBs in the last 2 months, with another upcoming. Will push the basin even further into +ENSO. pic.twitter.com/w2FFM1hI4G

— Andy Hazelton (@AndyHazelton) June 9, 2023