Federal forecasters expect one of the quietest Atlantic hurricane seasons in years, and they are crediting an unusually strong El Nino for keeping a lid on tropical storms. The climate pattern, which reappeared in the Pacific earlier in 2026, has ramped up the atmospheric conditions that tear developing systems apart before they can organize into hurricanes. In its August update, the National Oceanic and Atmospheric Administration held to its call for a below-normal season and nudged up the odds that 2026 will finish calmer than average. That outlook stands in sharp contrast to the string of busy years the basin has seen over the past decade.
NOAA’s below-normal outlook for 2026
In its mid-season forecast, the agency maintained its prediction for a below-average Atlantic season, projecting 7 to 13 named storms, of which 2 to 6 would become hurricanes and 0 to 2 would reach major-hurricane strength of Category 3 or higher. Forecasters also raised the probability of a below-average season from 55 percent to 75 percent, a sign of growing confidence that the atmosphere would stay hostile to storm development through the peak months of late summer and early fall. A named storm requires sustained winds of at least 39 miles per hour, while hurricane status begins at 74 miles per hour.
How El Nino strangles Atlantic storms
El Nino is the warm phase of a recurring seesaw in the tropical Pacific, and its effects reach far beyond that ocean. When the central and eastern Pacific warm, they alter wind patterns across the globe, and one downstream result is stronger high-altitude winds over the tropical Atlantic. Those winds increase what meteorologists call vertical wind shear, the change in wind speed and direction with height. As the National Oceanic and Atmospheric Administration’s hurricane researchers explain, strong shear can rip apart the tall, stacked structure a tropical cyclone needs, tilting and ventilating the storm so it cannot concentrate its energy. El Nino tends to bring drier, more stable air to the basin as well, further discouraging the towering thunderstorms that feed hurricanes.
A step down from the spring forecast
The August numbers represent a modest trim from the outlook the agency issued in late spring. Its May forecast had called for 8 to 14 named storms, 3 to 6 hurricanes and 1 to 3 major hurricanes, already a below-normal projection. As El Nino strengthened over the summer, forecasters grew more confident that the season would stay subdued and lowered the upper end of their ranges. Officials noted that a below-normal finish would be notable in its own right, marking only the second season in the past decade without above-normal activity. The Atlantic has been in an active stretch tied to warm ocean temperatures, so a genuinely quiet year stands out.
El Nino’s fingerprints far from the Atlantic
El Nino’s influence is not confined to hurricanes. The same warming of the tropical Pacific that suppresses Atlantic storms reshapes weather patterns around the world, often steering the jet stream in ways that bring wetter conditions to the southern United States, milder weather to parts of the north and drought to regions of Southeast Asia and Australia. Forecasters at NOAA’s Climate Prediction Center track the pattern through regular ENSO advisories, which monitor ocean temperatures and atmospheric signals to confirm when the pattern is present and how strong it has become. Because a robust El Nino can persist for many months, its effects tend to carry from one hurricane season into the following winter, giving the 2026 event an outsized role in the year’s overall weather story. The Pacific and the Atlantic are effectively linked through the atmosphere, so a change in one ocean can quiet or stir the other. That far-reaching connection is one reason meteorologists keep close watch on sea-surface temperatures thousands of miles from any coastline, even when their most pressing concern is the storm season nearer to home.
Why a quiet season still demands caution
Forecasters are careful to stress that a below-normal outlook is not the same as a harmless one. Seasonal numbers describe the basin as a whole and say nothing about where any individual storm might go. It takes only one landfalling hurricane to cause catastrophic damage, and some of the most destructive United States storms on record struck during otherwise sluggish seasons. Coastal residents are urged to prepare early each year, before a storm is on the horizon, by knowing evacuation routes, assembling supplies and reviewing insurance coverage. The Atlantic season runs from June 1 through November 30, and El Nino’s suppressing influence does not close the door on a late-season surprise. Warm ocean water remains plentiful, and a brief lull in wind shear can open a window for a storm to strengthen quickly. For that reason, emergency managers treat the seasonal forecast as a planning tool rather than a promise, and they continue to monitor conditions week by week through the heart of the season.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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