Atlantic Hurricane Season
What is El Nino?
How Does It Affect Atlantic Hurricanes?
During El Niño years, the Pacific basin experiences a reversal of easterly trade winds, which disrupts the normal flow of ocean currents. As a result, hurricane activity generally increases in the Pacific basin.
The Atlantic basin generally experiences an increase in upper-level wind speeds during El Niño years, resulting in decreased hurricane activity. These faster upper-level winds disrupt the relatively uniform wind speed and direction needed for hurricane formation, and thunderstorm complexes rip apart before they can develop into hurricanes.