Slow-moving Tropical Storm Chantal caused flooding over several central North Carolina counties. The Haw River in Alamance ...

Tropical cyclones with at least 74 mph winds are only differentiated as hurricanes, typhoons or the generic term "tropical cyclone," because of where they occur.

A tropical storm becomes a tropical cyclone, or a hurricane, once sustained wind speeds reach 74 mph. At this point, the storm is massive. According to NOAA, hurricanes are at least 50,000 feet ...