Forecasters in the United States predict that the 2025 Atlantic hurricane season will be above average, with 13 to 19 storms being named and 6 to 10 turning into hurricanes. Every year, forecasters such as the National Oceanic and Atmospheric Administration (NOAA) publish seasonal outlooks in advance of the Atlantic hurricane season, which begins on June 1 and ends on November 30.
The El Niño–Southern Oscillation (ENSO) and sea surface temperatures are two major climatic parameters that are highly influential in these outlooks. Sea surface temperatures are currently higher than the 30-year norm, and storms are fueled more by warm Atlantic waters. Another important factor is ENSO, which fluctuates between El Niño, La Niña, and the neutral phase. Whereas La Niña lessens high-altitude winds, increasing the likelihood of storm generation, El Niño increases these winds, which might interfere with storm formation.
ENSO has entered a neutral phase at the start of the 2025 season and is predicted to stay there for a few more months. This indicates that upper-level winds are neither very favorable for storms nor highly suppressive. Although these factors collectively suggest a somewhat above-average season, forecasters stress that many other factors affect whether storms develop, intensify, or reach landfall.
Subseasonal Influences Fine-Tune Storm Predictions
Once the season starts, forecasters turn their focus to shorter-term factors. These include Sahara Desert dust plumes, which dry up the atmosphere and block sunlight from reaching the ocean, thus preventing storms. Satellite monitoring provides a few weeks’ warning as these dust clouds move over the Atlantic, but the months ahead are unpredictable.
Another critical component is the African Easterly waves, which are thunderstorms moving from West Africa. These waves are the starting point for many large storms, particularly in August and September.
Storm formation is also influenced by the Madden–Julian Oscillation (MJO), a tropical atmospheric pulse that cycles every 30 to 60 days. When active over the Atlantic, it intensifies thunderstorm activity. Forecasters can monitor its phase two to three weeks ahead of time.
Storms can build quickly due to the deep, warm water flow known as the Loop Current in the Gulf of Mexico. But as the season progresses, its arrangement changes. Forecasters emphasize that the 2025 Atlantic Hurricane Season will likely require real-time adaptation to shifting ocean and atmospheric patterns.
Storm Formation Zones Shift Across the Season
Hurricanes most frequently form in the Gulf of Mexico in June and July, with the Florida Panhandle, Louisiana, and the Texas coast at greater risk. By August and September, “Cape Verde hurricanes,” originating off Africa and occasionally moving toward the Caribbean or the United States East Coast, take the stage.
Storms are more likely to emerge in the western Atlantic or Caribbean later in the season, and they may follow strange paths, as Hurricane Sandy in 2012 or Milton in 2024.
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