Final answer:
The first stage of hurricanes is Tropical Depression.
Step-by-step explanation:
The first stage of hurricanes is Tropical Depression. Hurricanes develop over water that is warmer than 80 °F. As the air heats, it rises rapidly, drawing incoming air to replace the rising air and creating strong wind currents and storm conditions. The rapidly rising humid air then cools and condenses, resulting in heavy rains and a downdraft of cooler air. If a storm reaches sustained winds of 39 to 73 miles per hour, it is upgraded to a tropical storm, and when winds reach a sustained speed of 74 miles per hour, a storm is classified as a hurricane.