The climate pattern that shaped this past winter is giving way, and what comes next could have significant consequences for the 2026 Atlantic hurricane season. The La Niña pattern is now breaking down, according to NOAA’s Climate Prediction Center and the International Research Institute, with neutral conditions expected to take over within the next month. From there, forecasters are watching something potentially much larger take shape — an El Niño pattern that could develop into one of the strongest on record.
NOAA has formally issued an El Niño Watch, indicating that El Niño conditions are expected to develop within the next six months. Several forecast models are now pointing to a 80 to 90 percent chance of a strong El Niño taking hold ahead of and during peak hurricane season.
What El Niño means for hurricanes
El Niño is one of three phases of the El Niño-Southern Oscillation, a natural cycle of Pacific Ocean temperature changes and atmospheric shifts that can influence weather patterns across the globe. El Niño refers to warmer-than-average ocean conditions in the equatorial Pacific, while La Niña describes cooler-than-average conditions. A neutral phase means temperatures are close to the long-term average.
When it comes to hurricane season, El Niño generally acts as a dampening force. Warmer Pacific conditions increase wind shear — hostile upper-level winds over the Atlantic that make it harder for tropical systems to form and strengthen. During El Niño years, the Atlantic produces on average roughly 10 named storms and five hurricanes. By contrast, La Niña years tend to be far more active, generating an average of 14 storms and seven hurricanes.
The stronger the El Niño event, the more that storm development is theoretically suppressed. But forecasters are quick to point out that the math is never that simple.
Why ‘Super El Niño’ is drawing attention
The shift in forecast intensity has been notable. As recently as February, models were projecting equatorial Pacific water temperatures peaking at roughly 0.7 degrees above average — a weak El Niño signal. The latest projections from Columbia University’s International Research Institute for Climate and Society, which aggregates nearly 20 different forecast models into a single outlook, now call for temperatures to peak in October at around 1.5 degrees above average — firmly in strong El Niño territory. Combined with NOAA’s own projections, the growing consensus points to conditions that could reach what meteorologists are calling a Super El Niño.
One storm is all it takes
Even with El Niño working against tropical storm development, forecasters are urging the public not to treat a quieter season forecast as a reason for complacency. Warmer-than-average Atlantic sea surface temperatures are expected to persist heading into hurricane season, providing the fuel that storms need to intensify once they do form. That creates what the FOX Forecast Center describes as a battle between El Niño’s suppressing winds and the warm ocean waters that feed tropical systems.
History makes the stakes clear. Hurricane Andrew, which tore through South Florida in August 1992, formed during an El Niño year. It killed 65 people and caused more than $25 billion in damages. More recently, the 2023 hurricane season unfolded during a strong El Niño but still became the fourth most active Atlantic season on record, with record-warm sea surface temperatures overriding much of El Niño’s dampening effect. Among that season’s storms was Hurricane Idalia, which caused $3 billion in damages when it struck the Big Bend region of Florida.
Timing will be critical
One of the most important variables forecasters are tracking is not just whether El Niño develops, but when. If strong El Niño conditions take hold by midsummer, they could suppress activity during the peak of hurricane season, which typically runs from mid-August through mid-October. However, if the transition from neutral to El Niño conditions is slower than projected, there could still be a window for storm development in June and July before those suppressing winds fully establish themselves.
The official start of the Atlantic hurricane season is June 1.
Source: Fox Weather