The World Meteorological Organization announced in its May 2026 ENSO Update that El Niño conditions are expected to develop by late 2026, raising the likelihood that 2027 will challenge or surpass the all-time global temperature record set in 2024. That same Pacific warming pattern is already shaping the Atlantic hurricane season: NOAA’s Climate Prediction Center issued its 2026 outlook in May projecting just 8 to 14 named storms and assigning a 55 percent probability that the season will finish below normal, the lowest activity range the agency has posted since 2015.
The forecast sets up an unusual split for the next 18 months: a calmer-than-average hurricane season for the Gulf and Atlantic coasts, followed by a potential surge in global heat that could rewrite climate records.
What NOAA’s 2026 hurricane outlook actually projects
The numbers are a sharp departure from the active 2024 season and the elevated storm counts that preceded this outlook. The CPC projects 8 to 14 named storms, 3 to 6 hurricanes, and 1 to 3 major hurricanes for the June 1 through November 30 season. For comparison, the updated 30-year average (1991 to 2020) is 14 named storms, 7 hurricanes, and 3 major hurricanes, meaning the 2026 midpoint sits well below the modern baseline.
A 55 percent chance of below-normal activity anchors the probability distribution, with the remaining odds split between near-normal and above-normal outcomes. That makes a subdued season the single most likely scenario, though not a certainty.
The mechanism is well established. El Niño events warm the central and eastern equatorial Pacific, shifting the jet stream and increasing vertical wind shear across the Atlantic’s main development region. Strong shear tilts tropical disturbances, ventilates their warm cores, and prevents the closed circulation a storm needs to intensify. The CPC outlook explicitly attributes the suppressed forecast to ENSO expectations, making El Niño the dominant climate driver behind this year’s lower numbers.
“The primary factor expected to suppress Atlantic hurricane activity this season is the development of El Niño,” said Matthew Rosencrans, lead seasonal hurricane forecaster at NOAA’s Climate Prediction Center, during the agency’s May 2026 outlook briefing. “El Niño increases wind shear across the tropical Atlantic, and that shear is the single biggest inhibitor of hurricane formation in the basin.”
Colorado State University’s Tropical Meteorology Project, which has issued independent seasonal forecasts since 1984, reached a similar conclusion in its June 2026 update, projecting a below-average season tied to anticipated El Niño development. Phil Klotzbach, the project’s lead scientist, noted that years with developing El Niño conditions have historically produced roughly 30 percent fewer named storms than the long-term average. The convergence of multiple forecasting groups on the same signal adds confidence to the broad outlook, even as individual storm tracks remain unpredictable months in advance.
Why the WMO expects El Niño to return and what it means for global temperatures
The WMO’s May 2026 ENSO Update reported that equatorial Pacific sea-surface temperatures had begun trending warmer and that the majority of dynamical and statistical models surveyed favor El Niño conditions emerging during the second half of 2026. “If a moderate-to-strong El Niño develops as models suggest, the additional heat released into the atmosphere will compound the long-term warming trend,” WMO Secretary-General Celeste Saulo said in the accompanying press statement.
History supports the concern. The 2023 to 2024 El Niño coincided with back-to-back annual temperature records: 2023 became the warmest year in the instrumental record, and 2024 surpassed it. NASA’s Goddard Institute for Space Studies and the European Union’s Copernicus Climate Change Service both confirmed those records. A new El Niño arriving in late 2026 would be expected to push its peak warming influence into 2027, following the typical several-month lag between Pacific sea-surface temperature anomalies and the global mean surface temperature response.
Whether 2027 actually sets a new record depends on several factors: the amplitude and duration of the El Niño, the behavior of other regional climate modes such as the Indian Ocean Dipole, and the continued rise in background CO₂ levels. The WMO’s statement reflects the strong probability that conditions will favor a record attempt, not a guarantee that one will occur.
The spring predictability barrier and what could change
ENSO predictions issued in spring for the following winter face a well-documented accuracy gap that climate scientists call the “spring predictability barrier.” Ocean and atmosphere coupling in the tropical Pacific can shift quickly between April and July, and model ensembles have occasionally flipped from El Niño to neutral or even La Niña scenarios during that window.
The CPC updates its ENSO diagnostic discussion monthly, and a material change in Pacific sea-surface temperature trends could alter the hurricane outlook at the mid-season update typically issued in August. A weaker-than-expected El Niño, or a delayed onset, would reduce the wind shear suppression over the Atlantic and potentially push storm counts back toward or above the seasonal average.
That uncertainty cuts both ways. If El Niño strengthens faster than models currently project, the Atlantic season could end up even quieter than the low end of the forecast range, while the global temperature spike in 2027 could arrive sooner and hit harder.
A quieter hurricane season does not mean a safer one
The 2026 range still allows for up to three major hurricanes, and a single landfalling Category 4 or 5 storm can cause tens of billions of dollars in damage regardless of the seasonal total. Hurricane Andrew in 1992 struck during a below-normal season and remains one of the costliest natural disasters in U.S. history. “It only takes one storm making landfall in a vulnerable area to make a season devastating,” said Ken Graham, director of the National Weather Service, echoing a warning emergency managers repeat every year.
For households along the Gulf and Atlantic coasts, the practical checklist has not changed. Flood insurance, which is not included in standard homeowners policies, should be reviewed now because new FEMA policies carry a 30-day waiting period before coverage takes effect. Important documents should be digitized and stored off-site or in the cloud. Evacuation routes and shelter locations should be confirmed before a storm threatens, not during one.
Businesses with coastal exposure face a similar calculus. A quieter season can be an opportunity to reassess physical vulnerabilities, from unprotected windows to low-lying warehouses to single-point-of-failure supply chains, without the distraction of back-to-back emergencies. For sectors like tourism, petrochemicals, and shipping, contingency plans that assume at least one significant disruption remain prudent even when the seasonal numbers look encouraging.
Two forecasts, one warming ocean
The same Pacific warming that suppresses Atlantic hurricanes can fuel extreme heat, drought, and flooding in other parts of the world. A milder hurricane season, if it materializes, will not mean a milder climate year overall. The 2023 to 2024 El Niño brought record marine heat waves, devastating coral bleaching across the tropics, and severe drought in the Amazon basin, all while Atlantic hurricane activity temporarily eased.
That pattern is the uncomfortable thread connecting the two halves of this forecast. The ocean dynamics that offer the Gulf Coast a statistical reprieve from storms in 2026 are the same dynamics that could push the planet past another temperature threshold in 2027. Policymakers, insurers, and residents would be wise to treat both projections as pieces of the same evolving picture rather than reading comfort into one while ignoring the other.
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*This article was researched with the help of AI, with human editors creating the final content.
