African Weather Disturbances Spike During La Niña
• New research links La Niña to stronger African easterly waves, increasing West African rainfall and Atlantic hurricane activity.
• The study enhances understanding of how El Niño–Southern Oscillation (ENSO) influences weather patterns across Africa, the Caribbean, and the Americas.
• Improved forecasts for rainfall, drought, and hurricane risk are anticipated, aiding in better preparedness for extreme weather events.
El Niño link to West African rainfall
A new study reveals a significant connection between the El Niño–Southern Oscillation (ENSO) and African easterly waves, which have a profound impact on West African rainfall patterns and the formation of Atlantic hurricanes. Conducted by researchers from the University of Miami and the National Center for Atmospheric Research (NCAR), the study highlights that La Niña years are characterized by stronger, moister African easterly waves, leading to increased thunderstorm activity. This phenomenon helps explain the observed increase in hurricane activity during La Niña years.
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