What is the reason for the strong wind in Yueyang 12, Hunan?

The reporter learned from the Hunan Provincial Meteorological Bureau on June 5438+06 that strong convective weather such as strong wind, hail and short-term heavy precipitation occurred in many places in Hunan due to the combined influence of warm and humid jets in the middle and lower layers and surface cyclone waves.

Strong winds of magnitude 8 or above generally occur in Dongting Lake area, among which the winds in villages and towns such as Zhongzhou, Matang, Xinkai and Ruokou in Yueyang County reached EF 1 tornado magnitude (magnitude 12) on the night of/5, and some areas were affected by this, resulting in the collapse or damage of houses, damaged agricultural greenhouse facilities and broken trees.

It is understood that this strong convective weather is fierce and extremely destructive. According to the person in charge of Yueyang Flood and Drought Disaster Prevention Center, the cadres and masses in the disaster-stricken areas of Yueyang City are making every effort to rescue and rescue the disaster. Electric power, communications, urban management, transportation and other related departments are rushing to drain waterlogging, clean up broken trees, and transfer people threatened by heavy rain in time to prevent secondary disasters.

Extended reading-the mechanism of gale;

The horizontal movement of air is called wind. Wind is a physical quantity representing the movement of airflow. Wind is a vector, which has not only magnitude (wind speed), but also direction (wind direction).

The movement of air is produced by force. In addition to gravity, there are also pressure gradient force caused by uneven pressure distribution, geostrophic force caused by the earth's rotation, friction force caused by relative motion between air layers and between air and ground, inertial centrifugal force caused by air bending motion, etc. Different combinations of these forces between horizontal components constitute different forms of atmospheric horizontal motion.

Among them, the pressure gradient force is the direct cause and power of the horizontal movement of air.

The above content refers to the Beijing Daily client-Yueyang, Hunan Province, where there was a 12 gale, and some areas were affected.