Equatorial Pacific — live

Real NASA GIBS satellite layers over a Mapbox dark base, with the four Niño regions outlined. Toggle the precursor signals NOAA and JPL use to detect a building Niño months in advance: SST anomaly (the headline), absolute SST, sea-surface height anomaly (Kelvin-wave proxy), wind speed (trade-wind weakening) and cloud optical thickness (deep convection over the central Pacific).