Super El Niños Linked to Extreme Weather, Experts Warn of “Shocking” Winter Temperatures

Climate scientists have confirmed that past super El Niño events have triggered severe flooding, wildfires, and disease outbreaks, with current models projecting “shockingly high” temperatures for the upcoming winter, according to the National Oceanic and Atmospheric Administration (NOAA).

What Is a Super El Niño?

A super El Niño refers to an intense phase of the El Niño-Southern Oscillation (ENSO) cycle, characterized by unusually warm sea surface temperatures in the central and eastern tropical Pacific. These events disrupt global weather patterns, often leading to extreme conditions. The 1997-1998 and 2015-2016 El Niños are classified as “super” due to their intensity, with the latter being the strongest on record, per the World Meteorological Organization (WMO).

Historical Impacts of Super El Niños

Historical data shows that super El Niños have caused widespread devastation. The 1997-1998 event led to catastrophic flooding in California and Peru, while Australia experienced severe droughts and wildfires. Disease outbreaks, including cholera in Africa and dengue in South America, also spiked during this period, according to the Centers for Disease Control and Prevention (CDC).

During the 2015-2016 event, the U.S. saw record-breaking heatwaves, and Indonesia faced devastating forest fires linked to prolonged dry conditions. “These events are not just weather fluctuations—they are global crises with cascading effects,” said Dr. Karen McKinnon, a climate scientist at the University of California, Los Angeles (UCLA), in a 2023 study published in *Nature Climate Change*.

Current Predictions and Concerns

As of June 2026, NOAA’s Climate Prediction Center has issued a La Niña watch, but experts warn that a potential shift to El Niño conditions could amplify winter temperatures. “We’re seeing early indicators that this winter could be among the warmest on record,” said Michael Wehner, a research scientist at the Lawrence Berkeley National Laboratory. “The phrase ‘shockingly high’ is being used because the projected anomalies are far beyond historical norms.”

The National Weather Service (NWS) notes that El Niño conditions could lead to wetter-than-average winters in the southern U.S. and drier conditions in the Pacific Northwest, increasing wildfire risks. Meanwhile, the WMO has highlighted the growing frequency of extreme weather events linked to climate change, which could exacerbate El Niño impacts.

How to Prepare for Potential Impacts

Communities in vulnerable regions are advised to review emergency plans and monitor updates from local authorities. The CDC recommends stockpiling supplies for potential flooding or heatwaves, while environmental agencies urge reduced carbon emissions to mitigate long-term risks. “Every fraction of a degree of warming matters,” said Dr. Katharine Hayhoe, chief scientist at the Nature Conservancy. “Preparation now can save lives.”

Why This Matters

The convergence of El Niño and climate change raises urgent questions about resilience. In 2023, the WMO reported that global temperatures were 1.4°C above pre-industrial levels, with El Niño events contributing to record-breaking heat. As the 2026 winter approaches, the interplay between natural climate cycles and human-driven warming could define the next phase of the climate crisis.