The United Kingdom is preparing for a significant shift in weather patterns as a "Super El Niño" is predicted to bring heavy rainfall and flooding starting in October, according to scientists. This autumn's stormy conditions are expected to be followed by a "bitterly cold" winter.
Dr. Amulya Chevuturi, a senior hydroclimate scientist at the UK Centre for Ecology & Hydrology, stated that a strong El Niño is likely to increase the chances of wetter and stormier weather across the UK from October to December. The North West of England is anticipated to experience more severe impacts than the South East.
This forecast comes after a period of record-breaking heat. Experts warn that the "unprecedented" Super El Niño could lead to significant disruptions. The El Niño Southern Oscillation is a natural climate cycle that occurs every two to seven years, alternating between warm El Niño and cool La Niña phases. During an El Niño event, the trade winds across the Pacific Ocean weaken or reverse, causing warm surface water to collect off the west coast of South America. This phenomenon can lead to widespread alterations in global weather patterns.
While thunderstorms may occur across the UK this week, the most severe storms are predicted to begin in October. Dr. Akshay Deoras, a Senior Research Scientist at the National Centre for Atmospheric Science, noted that after a dry summer in Wales and England, the parched soil may struggle to absorb intense rainfall. This could lead to rapid runoff, increasing the risk of flash flooding and surface water flooding. Strong winds associated with these storms could also cause damage and strain transportation and infrastructure.
Professor Hayley Fowler, Professor of Climate Change Impacts at Newcastle University, drew parallels to the 2015-2016 El Niño event, which brought a series of storms including Storm Desmond. Storm Desmond caused devastating flooding in Cumbria and surrounding areas, affecting approximately 5,200 homes and businesses.
Following the autumn storms, scientists anticipate a significantly colder winter. Dr. Deoras indicated that a cooler, drier winter could elevate heating demands and put additional pressure on energy systems. However, he also pointed out that the most substantial consequences of a stronger El Niño might be indirect, through disruptions to global agriculture and increased energy demand, which could impact food and energy prices.
