The key monitoring region (Niño 3.4) in the central equatorial Pacific has just risen to over 2.0˚C above average for the first time during this El Niño event 📈
— Ben Noll (@BenNollWeather) November 20, 2023
The last time that this part of the ocean was this unusually warm was in February 2016. pic.twitter.com/pejA6BEgN3