How devastating a Super El Niño would be for the US as odds show it could be strongest in history

Meteorologists at AccuWeather have raised concerns that this year’s El Niño could become a rare 'Super El Niño,' potentially the strongest ever recorded. The phenomenon involves a significant rise in sea surface temperatures in the tropical Pacific, particularly in the Niño 3.4 region, where temperatures could exceed long-term averages by 1.5°C. The National Oceanic and Atmospheric Administration’s (NOAA) Prediction Center estimates a 66% chance of a strong or very strong El Niño peaking later this year. Unlike typical El Niño events, a Super El Niño intensifies weather patterns, increasing risks of extreme conditions. Paul Pastelok, a senior meteorologist at AccuWeather, explained that while El Niño itself is not a storm, it contributes to broader weather changes, such as storms, hurricanes, and temperature shifts. For the US, this could mean a more active storm track in the South, wetter conditions in Southern states, and warmer temperatures in the Northern US, alongside heightened risks of droughts, wildfires, and flooding. The effects vary regionally: Chad Merrill, another AccuWeather meteorologist, noted that El Niño typically brings summer rain to the Midwest and West but may cause prolonged dry spells from the Gulf Coast to the East Coast, interspersed with heavy rainfall. Though El Niño is a natural cycle—alternating with La Niña—climate change may worsen its impacts by pushing global temperatures higher, particularly during strong events. The phenomenon occurs every few years, driven by ocean temperature fluctuations, but its intensity and global influence can differ. A Super El Niño could disrupt weather systems worldwide, with far-reaching consequences for agriculture, water supplies, and infrastructure in the US and beyond.