It is windy today. What is the gale level?

Wind power is classified as 12 according to its intensity. Level 0 is called no wind, and the land is characterized by straight smoke; 1 grade is called soft wind, which is characterized by smoke indicating the wind direction and leaves shaking slightly; The second level is called small wind, which shows the feeling of wind blowing on human face, the slight noise of leaves, the fluttering of flags and the shaking of tall grass. Level 3 is called breeze, which is characterized by leaves and twigs shaking, flags unfolding and tall grass shaking; Level 4 is called gentle wind, which is characterized by blowing dust and paper on the ground, shaking branches and undulating tall grass; The fifth grade is called Jin Qingfeng, which is characterized by small trees with swaying leaves, small waves on the inland water surface and obvious fluctuations on the high grass waves; Level 6 is called strong wind, which is characterized by swaying branches, ringing wires, difficulty in holding umbrellas and tall grass falling from time to time; Level 7 is called gale, which shows that the whole tree is shaking and the branches are bent, making it inconvenient to walk in the wind; Level 8 is called strong wind, which can break twigs, and people feel great resistance when they go against the wind; Level 9 is called gale, which is characterized by destroying grass houses, tearing off roof tiles and breaking branches; 10 is called gale, which is characterized by trees being blown down and general buildings being damaged. 1 1 is called a storm, which is characterized by the fact that trees can be blown down and ordinary buildings are seriously damaged; 12 is called hurricane, which is rare on land and has great destructive power.