Four levels of tropical cyclone wind speed

name

Attributes

Typhoon

The maximum wind speed appears >32.6 m/s, that is, more than 12 levels (64 knots or more)

Severe tropical storm

The maximum wind speed appears 24.5-32.6 m/s, that is wind 10-11 (48-63 nautical miles/hour)

Tropical storm

The maximum wind speed is 17.2-24.4 m/s, which is wind 8-9 (34-47 nautical miles/hour)

Tropical depression

The maximum wind speed is less than 17.2 meters/second, that is, wind power is 6-7 (22-33 knots/hour)