In wind speed observation, the faster the mid-back speed means the greater the wind speed.

The instrument for measuring wind speed is called anemometer, which consists of blades and ammeter. The greater the wind speed, the greater the blade speed and the greater the ammeter reading.

Wind speed can only be graded if there is no grade, and wind speed is the basis for wind grading. Generally speaking, the greater the wind speed, the higher the wind level and the more destructive the wind is.

Wind speed is one of the main parameters in climatology research, and the measurement of atmospheric travel plays an important role in global climate change research, aerospace industry and military application.

World record:

The fastest wind speed recorded:1996 April 10, a weather station on Barrow Island in Western Australia recorded an instantaneous wind speed of 408 km/h during the raging tropical storm "Olivia". This is the strongest ground wind measured by anemometer except hurricane.

Fastest wind speed:1999 On May 3rd, scientists at the University of Oklahoma recorded the fastest wind speed. A tornado hit near Josie, Oklahoma, USA. According to the record of vehicle-borne Doppler mobile meteorological observatory, its maximum speed is 486 km/h, and the error is less than 32 km/h.