On the following day, the system intensified into a tropical storm, which was named Calvin.
The following day, the depression intensified into a tropical storm.
It slowly headed north, and intensified into a tropical storm.
Within twelve hours, the depression intensified into a tropical storm.
Within six hours of developing, the depression had intensified into a tropical storm.
It is unknown if the system intensified into a tropical storm.
The depression quickly intensified into a tropical storm and was given the name Marco later that day.
It intensified into a tropical storm and was named Lily.
It intensified into a tropical storm on August 29 and a hurricane the next day.
Over the following 12 hours, further development took place, and the depression intensified into a tropical storm.