Origin
Cape Verde-type hurricanes typically develop from tropical waves which form in the African savanna during the wet season, then move into the African steppes. The disturbances move off the western coast of Africa and become tropical storms or tropical cyclones within 1,000 kilometres (620 mi) of the Cape Verde Islands, usually between July to September. However, Cape Verde hurricanes have formed as early as June or as late as October. An average of two form per hurricane season.
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