It slowly developed, and organized into a tropical depression on September 8.
An area of disturbed weather organized into a tropical depression late on November 8.
The system organized into a tropical depression on September 18.
The next day, it had rapidly organized into a tropical depression.
Over the following few days, the system gradually organized into a tropical depression.
It organized into a tropical depression the next day.
One of them organized into a tropical depression on September 28.
On June 28, the disturbance had organized into a tropical depression.
On June 1, the low pressure area organized into a tropical depression.
On September 1, the storm organized into a tropical depression, very early that morning.
