The system moved northwest and reached tropical storm strength on the 19th.
The disturbance had become a tropical depression on July 23 and reached storm strength the next day.
The new disturbance would reach tropical storm strength 24 hours later.
A depression that formed October 5 reached storm strength the same day.
It took over 24 hours to reach tropical storm strength.
There were also two tropical depressions that did not reach storm strength.
It strengthened slowly and moved nearly due west, before reaching storm strength later on July 20.
Due to the storm's small size, it quickly weakened to tropical storm strength later that day.
The depression finally reached tropical storm strength and was named Joanne.
It soon regained storm strength, however, and continued to strengthen.
