**An El Niño event is already underway in the equatorial Pacific and intensifying rapidly toward very strong (“super”) intensity by late 2026.** As of mid-July 2026, the Niño 3.4 sea-surface temperature (SST) anomaly had climbed to approximately +2.1 °C, with the relative Oceanic Niño Index (RONI) also crossing key thresholds for exceptional strength. NOAA’s Climate Prediction Center July diagnostic discussion assigns an 81% probability of a very strong El Niño (Niño 3.4 anomalies typically ≥ +2.0 °C relative to the tropical mean) during October–December 2026—the core of Northern Hemisphere winter—and a 97% chance the event persists into early 2027. This outlook rests on three converging lines of evidence: (1) observed oceanic and atmospheric coupling, including a strongly negative Southern Oscillation Index and record subsurface warmth in the eastern Pacific; (2) consensus across dynamical models (NMME, ECMWF, and others) projecting further warming through fall, with multi-model medians near or above prior record peaks; and (3) the event’s rapid onset and growth rate, which already matches or exceeds historical analogs such as 1997–98 and 2015–16. Traders therefore assign high implied probability to a super El Niño this winter because current measurements and forecast guidance leave limited room for the event to weaken below the very-strong threshold before peak season. The next official NOAA update, scheduled for mid-August, will provide the latest model runs and observational confirmation.