A potentially record-shattering El Niño is gathering strength in the Pacific Ocean, and its effects on global weather are already being felt. Federal forecasters warn that this developing climate pattern could surpass any event in recorded history, putting millions of people at risk from floods, droughts, and other extreme conditions.
Despite the enormous stakes, the National Oceanic and Atmospheric Administration is not planning the kind of intensive research campaign it launched during the last major El Niño a decade ago. That decision has alarmed climate experts who say detailed study of this event could yield insights that save lives and improve forecasts for years to come.
El Niño is a recurring climate phenomenon that begins with warmer-than-average ocean surface temperatures in the central and eastern Pacific. It disrupts atmospheric circulation patterns worldwide, altering rainfall, shifting storm tracks, and influencing everything from hurricane activity to winter snowfall. The stronger the El Niño, the more pronounced these disruptions tend to be.
In 2015 and 2016, a powerful El Niño delivered catastrophic flooding to South Carolina, driven by rainfall that broke historical records. Forecasters now say the system currently building is likely to be even more intense than that one, raising the prospect of severe weather events across multiple continents.
The human and economic costs of such events can be staggering. Floods destroy homes, roads, and crops. Droughts wither farmland and deplete drinking water supplies. The ability to anticipate where and when these impacts will strike is critical for emergency planners, farmers, water managers, and local officials who must make decisions weeks or months in advance.
That is why the last strong El Niño prompted an unusually ambitious scientific response. NOAA organized a rapid response research effort designed to capture the phenomenon in unprecedented detail. The agency deployed a research ship, aircraft, weather balloons, and unmanned drones into the Pacific to collect data on the evolving ocean and atmosphere.
The goal was not simply to document the event but to understand the mechanisms that drive it. Researchers hoped that better observations would sharpen computer models, reduce uncertainty in seasonal forecasts, and ultimately give communities more lead time to prepare.
This year, NOAA will not be matching that level of effort. The agency is scaling back its research activities even as a potentially historic El Niño unfolds. The reasons for the reduced scope are not detailed in the source material, but the practical effect is that scientists will have fewer tools in the field during what may be a once-in-a-generation opportunity.
Climate experts describe the situation as a missed chance. A super El Niño is a natural laboratory, they say, and the data gathered during such an event can improve understanding of the phenomenon for decades. Once the ocean cools and the pattern fades, the window closes.
The research gap could carry real consequences for forecast accuracy. Better observations of ocean heat content, wind patterns, and atmospheric moisture help scientists refine the models that predict how El Niño will influence weather thousands of miles away. Without that data, forecasts may remain less precise than they could be.
The timing is especially concerning because the current El Niño is already affecting extreme weather around the planet. Its fingerprint has appeared in unusual storm activity and shifting precipitation patterns, offering a preview of the disruption that may lie ahead.
For vulnerable communities, the difference between a good forecast and a poor one can be measured in lives and livelihoods. A timely warning can prompt evacuations, protect harvests, and guide the release of water from reservoirs. A missed signal can leave people exposed.
NOAA's decision also raises broader questions about the nation's capacity to study a changing climate. As extreme weather events become more frequent and intense, the demand for reliable seasonal forecasting is growing, not shrinking. Each strong El Niño offers a chance to learn something new about how the climate system behaves under stress.
Scientists who study El Niño emphasize that the phenomenon is not fully understood. Its onset, strength, and regional impacts vary in ways that models still struggle to capture. Field campaigns during strong events are one of the few ways to close those gaps.
Whether this super El Niño will produce the kind of disasters seen in 2015 remains uncertain. But forecasters agree that the potential is high, and that the coming months will be closely watched. The question now is how much the scientific community will be able to learn while the event is still underway.
For now, the contrast between the magnitude of the climate event and the scale of the research response is stark. A powerful force is building in the Pacific, and the eyes trained on it will be fewer than they were the last time.
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