A dormant August stretch of storm activity in the tropics concluded on Sunday afternoon when the National Hurricane Center began monitoring two disturbances off the west coast of Africa. After a week and a half of quietude over the Atlantic Ocean, the 8 p.m. update described one system in the east-central Atlantic and another in the eastern area of the body of water. Both systems initially have been given a 20% chance of development over the next week. Of the more centrally located area of interest, the National Hurricane Center wrote: An “area of low pressure could develop by the middle to latter portion of this week over the east-central tropical Atlantic several hundred miles southwest of the Cabo Verde Islands.