Original: A tropical storm is an organized system of strong thunderstorms with a defined surface circulation and maximum sustained winds between 17 m (39 m) and 32 m (73 m).
Simplified: A tropical storm is an organized system of strong thunderstorms with a very clear surface circulation and maximum sustained winds between 17 and 32 m\/s (34 â "63 kt, 39 â" 73 mph, or 62 â "117 km\/h).