Recent strengthening of sea surface temperature anomalies across the Niño 3.4 region, reaching +3.3°C weekly and +1.7°C on the JAS RONI, has driven trader consensus toward a peak exceeding 2.5°C. NOAA’s Climate Prediction Center October 8 outlook assigns 83% odds to a historic October–December RONI value at or above that threshold, citing rapid intensification and model consensus for continued warming through year-end. This positions the event among the strongest since 1950 on the relative index, which accounts for tropical-wide trends. Upcoming seasonal updates and weekly observations through December will refine peak timing and magnitude amid typical forecast spread.