Answer

What Is a Tropical Depression?

Answer:

A tropical depression is the weakest tropical cyclone type. Storms in this category involve thunderstorms with circular wind flow that have maximum sustained winds below 38 mph. Different names are used for tropical cyclones depending on their strength and location, including: hurricane, typhoon, cyclonic storm, tropical storm, and tropical depression.

What Causes Tropical Depressions?

When a low-pressure area is accompanied by thunderstorms, it forms a tropical depression. These depressions are fueled by warm ocean waters and moist air that rises in thunderstorms, releasing energy that keeps the system rotating. Tropical depressions serve as the precursors to stronger storms, such as tropical storms and hurricanes.

What's the Difference Between a Tropical Depression and a Tropical Storm?

The maximum sustained wind speed of a storm determines whether it is classified as a tropical depression or a tropical storm. In the North Atlantic, Caribbean Sea, and Gulf of Mexico, tropical storms have maximum sustained winds between 39 to 73 mph. Once sustained wind speeds reach or exceed 74 mph, the storm is then classified as a hurricane.

How Do Tropical Depressions Affect the Weather?

The counterclockwise circulation of a tropical depression causes heavy rainfall, strong winds, and flooding. Tropical depressions can bring tornadoes and waterspouts as well. These storms can impact coastal areas and move inland, causing widespread damage and loss of life.

How Do You Stay Safe During a Tropical Depression?

Heed the instructions of local authorities and stay indoors during a tropical depression. If you must go outside, use caution when driving or walking. Avoid flooded areas and never drive through standing water.