TEMPO.CO, Jakarta - A critical Super El Nino forecast issued by climate scientists worldwide warns public health and disaster management authorities to prepare for severe disruptions as an exceptionally strong ocean warming pattern rapidly intensifies across the tropical Pacific Ocean.
The El Niño Southern Oscillation (ENSO) is a recurring climate pattern characterized by fluctuating sea surface temperatures and atmospheric pressure differences across the Pacific Ocean. While neutral phases maintain average surface temperatures, El Niño occurs when waters in the eastern equatorial Pacific warm significantly above baseline averages, shifting global atmospheric circulation.
According to Science News Explores, the U.S. National Oceanic and Atmospheric Administration (NOAA) confirmed the onset of the current El Niño phase after ocean surface temperatures consistently exceeded historical averages. Forecasters now project a high probability that this cycle will develop into a rare "Super El Niño," defined by sea surface temperature anomalies surpassing 2.0 degrees Celsius (3.6 degrees Fahrenheit) above normal.
"It would not take a very strong El Niño to see records broken this year," warned Tom Di Liberto, a climate scientist and meteorologist at Climate Central, as reported by Science News Explores. He noted that computer models forecast "shockingly high" global temperatures as the heat transfer peaks.
As reported by Severe Weather Europe, multi-model consensus forecasts from major global meteorological institutions—including NOAA's Climate Prediction Center, the European Centre for Medium-Range Weather Forecasts (ECMWF), and Australia's Bureau of Meteorology (BOM)—indicate that the ongoing event could rank among the strongest in recorded history, with localized temperature anomalies in the eastern Pacific reaching 3 to 4 degrees Celsius above normal.
Key Drivers and Expected Impacts of Super El Niño
1. Subsurface Kelvin Waves and Atmospheric Coupling
Data analyzed by Severe Weather Europe reveals that the primary engine driving this event is a powerful subsurface Kelvin wave—a massive pool of warm water submerged up to 500 meters beneath the Pacific surface, featuring temperature anomalies exceeding 7 degrees Celsius above normal. Westerly wind bursts across the equatorial region push these warm waters eastward, forcing them to upwell and alter the Walker circulation cell. This mechanism forms an "atmospheric standing wave" that locks the global weather system into an active El Niño state through the winter season.
2. Economic and Health Hazards
Historical precedent highlights the severe financial and societal toll of major El Niño occurrences. Science News Explores notes that the 1982–1983 event resulted in an estimated $4.1 billion in global damages, while the historic 1997–1998 event caused approximately $5.7 trillion in losses due to widespread flooding, severe agricultural droughts, marine heatwaves, and disease outbreaks.
Beyond economic disruptions, extreme heatwaves linked to El Niño elevate heat-related illness rates and accelerate the spread of vector-borne diseases such as malaria and dengue fever.
3. Jet Stream Shifts and Extreme Winter Patterns
The strong equatorial heat source fundamentally alters global atmospheric jet streams. Over North America, an amplified southern Pacific jet stream is expected to bring increased precipitation, frequent storm tracks, and cooler temperatures across the southern United States, while high-pressure blocking over Canada isolates milder conditions to the north.
Furthermore, historical data indicates that strong El Niño events significantly increase the likelihood of Sudden Stratospheric Warming (SSW) events, which can weaken the stratospheric Polar Vortex and release arctic cold air into mid-latitude regions across North America and Europe.
4. Solar Radiation Management Studies
In response to worsening climate anomalies, researchers are evaluating long-term mitigation strategies. A study published in Science Advances examined the hypothetical use of atmospheric aerosol injections to brighten clouds over targeted Pacific regions and reflect solar light back into space.
"The fact that it looks like this could work is a really good indication that it is something worth thinking about," observed Daniele Visioni, a climate scientist at Cornell University who was not involved in the research. However, lead author Jessica Wan of the University of Chicago emphasized that such interventions remain years away from practical deployment, citing unaddressed ecological risks and technological limitations.
Unfolding ocean temperature anomalies and atmospheric shifts confirm that the developing Super El Niño will remain a dominant driver of global weather patterns into next year, requiring heightened vigilance across infrastructure, agriculture, and emergency response sectors.
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