A rare Atlantic Niña is emerging in the tropical Atlantic while a super El Niño develops in the Pacific, and the Atlantic Niño El Niño US setup is already shaping hurricane risk. If the Atlantic cooling holds, it would be the sixth Atlantic Niña in 40 years.
Andrej Flis, a senior meteorologist and long-range forecaster, wrote for Severe Weather Europe that, “These two anomalies appear to work on opposite poles (warm vs. cold), but they are actually perfectly aligned in their atmospheric impact.” That is the core conflict in this pattern: the Atlantic and Pacific look opposite on the map, yet they push weather in the same broad direction.
Atlantic Niña and El Niño
The Atlantic Niña affects the eastern equatorial Atlantic Ocean. The Pacific signal is different in shape and scale, with El Niño appearing as a long band of warmer-than-average temperatures stretching outward from the northeastern coast of South America. The Atlantic Niña appears as a smaller region of colder-than-average temperatures off the southeastern coast of Africa.
For the Atlantic phase to count as the sixth Atlantic Niña of the last 40 years, Atlantic sea surface temperatures must remain 0.9 degrees Fahrenheit below average for at least two overlapping seasons. That threshold is what turns a temporary cool pocket into a rare basin-wide signal worth watching through the heart of the Atlantic hurricane season.
NOAA and the Atlantic Basin
El Niño increases vertical wind shear across the Atlantic Ocean, making it harder for thunderstorms to organize into hurricanes. Severe Weather Europe says Atlantic Niña conditions cut the number of tropical cyclones by 50% compared with Atlantic Niño, the warm phase, and that same 50% drop applies to landfalling hurricanes in the United States.
NOAA’s 2026 outlook points to below-normal activity, with eight to 14 named storms, three to six hurricanes and one to three major hurricanes. By July 17, only one named storm had formed in the Atlantic Basin, while the average by that date is two. Tropical Storm Arthur had already brought flash flooding and tornadoes to the South in June, but it was disorganized and short-lived.
Atlantic disturbances to watch
The National Hurricane Center is tracking two Atlantic disturbances with slight chances of cyclone formation within the next seven days. One off the southeast coast of the U.S. has a 20% chance of developing, and the other in the eastern tropical Atlantic has a 10% chance. In the Pacific Basin, Tropical storm Elida is the fifth named storm this year and is tracking westward away from land.
That leaves one practical takeaway for the Atlantic coast: the season is still young, but the background state is leaning against rapid storm buildup. If the cool Atlantic pattern holds for two overlapping seasons, the basin could be moving toward a rare sixth Atlantic Niña while the U.S. hurricane season stays under pressure from both oceans at once.
