How many grades do meteorologists have for shorthand?

Meteorologists abbreviate wind power as 18.

Wind power refers to the strength of the wind blowing on an object. Generally speaking, according to various phenomena caused by wind blowing on objects on the ground or water surface, the wind force is divided into 13, with a minimum of 0 and a maximum of 12.

According to the national standard "Wind Grade" issued in June of 20 12, and according to the wind speed at the height of 10 meter in the standard meteorological observation field, the wind grade is divided into 18 grade in turn. There are three commonly used units to express wind speed, namely nautical mile/hour, meter/second and kilometer/hour, and the commonly used unit for typhoon forecast in China is meter/second.

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.