For months now, scientists have been watching the Pacific Ocean with growing concern. As of mid-May 2026, the National Oceanic and Atmospheric Administration (NOAA) and meteorologists worldwide are warning that an El Niño weather pattern is developing earlier than expected, and it might reach historic strength by the end of the year. The implications could be far-reaching, with impacts set to ripple across the United States and the globe, from Virginia to Southeast Asia.
According to NOAA’s Climate Prediction Center, there is now an 82 percent chance that El Niño conditions will develop between May and July 2026. Even more striking, there’s a 96 percent chance these conditions will persist through the winter of 2026-27, stretching into February 2027. As reported by USA TODAY and corroborated by several meteorological outlets, this marks a significant shift from earlier in the year, when most forecasts predicted a neutral ENSO (El Niño–Southern Oscillation) state following a weakening La Niña.
But what exactly is El Niño, and why does it matter? El Niño is a natural climate pattern characterized by warmer-than-average sea surface temperatures in the central and eastern tropical Pacific Ocean. The phenomenon, first noted by South American fishermen in the 1600s, can dramatically alter weather patterns worldwide. Its counterpart, La Niña, is marked by cooler-than-average waters in the same region. Together, these swings are known as ENSO, and their influence is anything but subtle.
As NOAA and climate scientists from the Cooperative Institute for Research and Environmental Sciences (CIRES) at the University of Colorado Boulder explain, the Pacific Ocean is the largest body of water on Earth. When its waters heat up, as during El Niño, that heat can modify atmospheric circulation enough to affect weather conditions almost everywhere. "ENSO tries to lock us into a weather pattern that persists for several months," said Kris Karnauskas, associate professor at CU Boulder. His colleague, Antonietta Capotondi, adds, "It is like baking a cake. You need all the ingredients, but also a functioning oven for a predictable outcome. We have the main ingredients, and unless the oven breaks, we should have the cake."
This year, the "ingredients" are certainly present. Heat content in the equatorial Pacific is large, and strong anomalous winds—part of another climate fluctuation called the Pacific Meridional Mode—are favoring El Niño’s development. As Capotondi points out, "Things seem to be moving in that direction," though she cautions that Earth’s climate system is noisy, and absolute certainty is elusive.
So, what does this mean for the United States? In Virginia, NOAA’s May through July outlook shows near normal precipitation, with western regions forecasted to experience temperatures 33-40 percent lower than normal. Central and eastern Virginia will likely see typical seasonal temperatures. However, meteorologists warn that if El Niño strengthens further, it could disrupt weather patterns worldwide, bringing heavier rains and flooding to some regions while worsening drought and heat in others. A major El Niño event in 2026 could also contribute to record global temperatures, alter hurricane activity, fuel wildfires, and strain food and water supplies in vulnerable areas, according to Patch.
Meanwhile, in Ohio and much of the Midwest, the story is a bit different. As of mid-May 2026, Ohio is not expected to be significantly affected by El Niño in the coming months. The World Meteorological Organization notes that El Niño generally brings increased rainfall to parts of southern South America, the southern United States, the Horn of Africa, and central Asia, while causing drought over Australia, Indonesia, and parts of southern Asia. For Ohio, the immediate forecast is relatively calm, but uncertainty remains as the strongest part of El Niño might arrive late in the year, potentially impacting the Atlantic and Pacific hurricane seasons from June to November 2026.
Florida, on the other hand, is bracing for more direct effects. According to ClickOrlando and NOAA’s ENSO Diagnostic Discussion, El Niño years typically bring a less active Atlantic hurricane season, as stronger upper-level winds create more wind shear, making it harder for tropical systems to organize and strengthen. Yet, history has shown that a quieter season does not mean immunity—Hurricanes Andrew (1992) and Michael (2018) both formed during El Niño years and caused devastating impacts. The bigger signal for Florida comes during the cooler months. El Niño winters often bring a more active southern jet stream across the Gulf Coast and Florida, steering more moisture and storm systems into the state. This pattern usually leads to above-average rainfall during what is normally Florida’s dry season, reducing drought risk but increasing chances for stronger storm systems and severe weather during winter and early spring.
Global impacts are just as varied. As CU Boulder Today and NOAA highlight, strong El Niño events may bring drought and forest fires to Southeast Asia, while the southwestern United States tends to get more precipitation. The northeastern part of the country could see drier conditions, and the effects across the globe are highly regional and sometimes unpredictable. “It’s not a globally consistent effect. It is very regional,” Karnauskas emphasizes.
Forecasting El Niño is notoriously tricky, especially in the spring when ocean and atmospheric conditions can change rapidly. While current models suggest that the coming El Niño could be among the top five strongest since satellites began tracking ocean temperatures in 1982, there’s no formal scientific definition of a “super El Niño.” Karnauskas clarifies, “What that sounds like to me is a very strong El Niño, and we've had a lot of strong El Niños in the past. So it wouldn't by any stretch be a record-breaking El Niño. But it would be a strong one with important implications.”
The uncertainty doesn’t end there. As Capotondi explains, “There is never an absolute certainty that conditions will develop the way they are forecasted to.” The analogy of baking a cake rings true: even with all the right ingredients, a malfunctioning oven—or in this case, unexpected changes in wind or ocean currents—could change the outcome at the last minute.
For now, the consensus among scientists is clear: all the main ingredients are in place for a strong El Niño to occur in 2026. The fuel is there, as Karnauskas puts it, and unless something unexpected intervenes, we should expect a significant shift in weather patterns in the coming months. The world will be watching closely as this climate event unfolds, hoping for the best but preparing for the disruptions that a strong El Niño can bring.