Britain's Met Office has predicted sea surface temperatures in the tropical Pacific will reach an "unheard-of" level of potentially more than three degrees above average, triggering severe droughts across…

El Niño is declared when sea temperatures in the tropical eastern Pacific rise 0.5C above the long-term average, impacting global rainfall patterns and temperatures.

After a summer of heatwaves and drought across the UK Brits could be battered by storms and rain due to an 'unprecedented' El Nino event - as the notorious weather event plays a…

The weather event is predicted to be the largest since the 1800s