Topic summary
Tropical waves
Extracted from the Wikipedia article Tropical wave.
Atlantic
Tropical waves in the Atlantic basin develop from low-pressure disturbances, which develop as far east as Sudan in east Africa, and drift across the continent into the Atlantic Ocean. These are generated or enhanced by the African Easterly Jet. The clockwise circulation of the large transoceanic high-pressure cell or anticyclone centered near the Azores islands (known as the Azores High) impels easterly waves away from the coastal areas of Africa towards North America.