Storm activity in the desert region ebbs during this period; these storms send top soil particles aloft and get carried by the trade winds that generally get deposited in the GOM sparking off an algae bloom with the nitrogen-rich particles.
These storms subside before the Cape Verde season begins, generally.
There is little chance that meteorologists can solve the mysteries of weather until they gain an understanding of the mutual attraction of rain and weekends. ~Arnot Sheppard