The UK may face a stormy autumn and a challenging winter due to an unprecedented El Niño event, according to Met Office long-range forecasts. Professor Adam Scaife, head of long-range forecasts at the Met Office, described the developing El Niño as unlike anything previously seen in modern climate records, with its influence expected to intensify globally as it approaches its peak by the end of 2026.
Forecasters are already observing signals indicating increased rainfall and storminess across the UK, particularly in November and December. While a wet autumn might seem beneficial after a summer anticipated to be the UK's hottest on record and ongoing drought conditions in many areas, the nature of these storms presents a significant risk. Climate change is exacerbating the likelihood of increasingly intense rainfall, meaning these downpours could lead to substantial flooding.
Beyond flooding, the potential for strong winds accompanying these weather systems poses a threat of damage to infrastructure, disruption to transportation networks, and power outages. Historical data from the winter of 2015-2016, which coincided with a powerful El Niño, saw a series of severe storms that experts at the time characterized as the most extreme flooding on record.
