Each September, the Atlantic basin typically reaches its most volatile moment — a convergence of warm seas and favorable winds that gives rise to the season's most powerful storms. Yet 2026 has held unusually quiet, not by chance, but because at least two distinct climate forces are working in tandem to suppress what forecasters had anticipated would be a more active season. El Niño's familiar hand is present, but scientists have found it is not acting alone, and understanding this partnership may ultimately sharpen how coastal communities prepare for the storms that have not yet come.
Beyond El Niño: What's Really Keeping Atlantic Hurricanes at Bay
The season's most dangerous months may still lie ahead
Mark
So we're in mid-September and the Atlantic hasn't produced the hurricanes we'd normally expect by now. Is that just because of El Niño, or is something else going on?
Mimi
El Niño is definitely part of it—it increases wind shear, which tears storms apart before they can develop. But researchers found that El Niño alone doesn't account for how quiet this season has been. There's another atmospheric factor at work.
Luke
Do we know what that second factor is? The piece says scientists are investigating it, but that sounds like they haven't pinned it down yet.
Mimi
That's fair. The reporting identifies that it exists and that it's measurable, but the exact mechanism—whether it's ocean temperatures, circulation patterns, or something else—is still being studied.
Mark
What does this mean for the rest of the season? Are we safe now?
Mimi
Not necessarily. The delayed peak suggests the most active period might still be coming. And if these suppressing forces weaken, activity could rebound sharply.
Luke
But we don't know when that might happen, or how strong the rebound would be.
Mimi
Right. That's the forecasting challenge. Understanding these multiple drivers could eventually help predict not just how many storms form, but when.
Mark
So this is really about improving our ability to forecast?
Mimi
Yes. And also recognizing that the relationship between large-scale climate patterns and Atlantic hurricanes is more complex than we thought.
Luke
Which means the models we've been using might have been oversimplifying things.
Mimi
Exactly. This discovery suggests we need to account for more than just El Niño when we're trying to predict the season.
The Pulse
- The 2026 Atlantic hurricane season has produced far fewer storms than expected, with the characteristic September surge — historically the most dangerous stretch — failing to materialize.
- El Niño is doing what it typically does, increasing wind shear that tears apart developing storms before they can organize, but researchers have confirmed a second atmospheric force is amplifying the suppression.
- The identity and origin of this secondary driver remain under active investigation, leaving forecasters working with an incomplete picture of why the season has stalled.
- The danger is not over: a delayed peak means the season's most threatening window may still be approaching, even as overall storm counts remain below historical norms.
- Communities along the Atlantic coast are being cautioned that a quiet early season is not a guarantee of safety — suppressing forces can weaken, and the basin can rebound sharply.
Each September, the Atlantic basin typically reaches its most volatile moment — a convergence of warm seas and favorable winds that gives rise to the season's most powerful storms. Yet 2026 has held unusually quiet, not by chance, but because at least two distinct climate forces are working in tandem to suppress what forecasters had anticipated would be a more active season. El Niño's familiar hand is present, but scientists have found it is not acting alone, and understanding this partnership may ultimately sharpen how coastal communities prepare for the storms that have not yet come.
September is ordinarily the Atlantic hurricane season's most fearsome month — warm oceans, relaxed wind shear, and a primed atmospheric engine combine to produce the year's most powerful storms. In 2026, that machinery has largely stalled. Since the season opened on June 1st, fewer storms than anticipated have formed, and the expected mid-September surge has not arrived.
Scientists have long known that El Niño — the periodic warming of the equatorial Pacific — suppresses Atlantic hurricane activity by increasing wind shear, the shifting of wind speed and direction with altitude that can tear apart a developing storm. El Niño has been present this year and has played its expected role. But researchers have determined it is not acting alone. A second atmospheric force has been identified as a meaningful contributor to the delayed season, further reducing the number of storms reaching maturity. Whether this secondary driver originates in ocean temperatures, circulation patterns, or some interaction between them remains an open question.
The discovery carries consequences beyond 2026. Forecasters have traditionally leaned heavily on El Niño in their seasonal models, but the presence of this additional suppressing factor suggests the relationship between large-scale climate systems and Atlantic hurricane frequency is more complex than previously emphasized. A fuller understanding could improve predictions of not just how many storms will form, but when they are most likely to strike.
Perhaps most urgently, the delayed peak raises the question of what follows. If El Niño weakens or shifts toward La Niña conditions — which typically enhance Atlantic activity — while this secondary force persists, the net outcome is uncertain. If both factors fade at once, a sharp rebound in storm formation is possible. The quiet so far is not a promise of calm ahead.
September is usually the cruelest month for the Atlantic basin. By mid-month, the ocean has warmed for months, wind shear has often relaxed, and the atmospheric machinery that spins tropical disturbances into hurricanes reaches its seasonal peak. Yet 2026 has defied that script. The Atlantic hurricane season, which began June 1st, has produced fewer storms than forecasters anticipated, and the characteristic September surge—when most major hurricanes typically form—has not materialized.
Scientists have long understood that El Niño, the periodic warming of the equatorial Pacific Ocean, tends to suppress Atlantic hurricane activity. The mechanism is straightforward: El Niño alters wind patterns across the Atlantic basin, increasing wind shear—the change in wind speed and direction with altitude—that tears apart developing storms before they can organize. This year, El Niño conditions have indeed been present, and they have played their expected role in dampening storm formation. But researchers investigating the 2026 season have discovered that El Niño alone does not fully explain the quieter-than-normal activity.
A second atmospheric force has emerged as a significant contributor to the suppressed season. Scientists have identified this additional factor as playing a measurable role in delaying the typical peak of hurricane activity and further reducing the number of storms that reach maturity. The exact nature of this secondary driver—whether it originates in ocean temperatures, atmospheric circulation patterns, or some interaction between them—represents an active area of investigation. What is clear is that multiple climate systems are working in concert to reshape the 2026 season's trajectory.
The implications extend beyond this single year. Understanding how these different atmospheric and oceanic forces combine to influence hurricane activity could refine the seasonal forecasts that communities along the Atlantic coast rely on for preparation and planning. Forecasters have traditionally weighted El Niño heavily in their models, but the discovery of this additional suppressing factor suggests that the relationship between large-scale climate patterns and Atlantic hurricane frequency is more intricate than previously emphasized. A more complete picture of these drivers could allow for more precise predictions of not just how many storms will form, but when they are most likely to occur.
The 2026 season also raises questions about what happens when these suppressing forces weaken or reverse. If El Niño transitions to neutral or La Niña conditions—the opposite phase, which typically enhances Atlantic hurricane activity—while this secondary factor persists, the net effect on storm formation remains uncertain. Similarly, if both forces fade simultaneously, the Atlantic basin could experience a sharp rebound in activity. The delayed peak activity observed so far suggests that the season's most dangerous months may still lie ahead, even as the overall number of storms remains below historical averages. Communities cannot assume that a quiet early season guarantees a quiet year.
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