Tropical depression vs. tropical storm: What is the difference?

The tropics are eerily quiet in a month where hurricane activity is really supposed to kick off. It's this time of year where we throw around a lot of different terms like tropical depression and tropical storm, but what's the difference? Courteney Jacobazzi breaks it all down.
Published: 5:16 PM EDT August 20, 2019
Updated: 5:16 PM EDT August 20, 2019