The UK Met Office has issued forecasts for an intense El Niño event, with Pacific sea surface temperatures projected to rise more than 3°C above average and potentially peak at 3.9°C in November. Adam Scaife, head of long-range forecasting, described the signal as unprecedented. Current anomalies stand at 2.6°C above the 30-year average, exceeding the typical 1-2°C range for such events.