How many levels did the biggest wind blow in Hebei?

Meteorological Observatory of Hebei Province released the weather facts: Except for most parts of Hengshui, central and eastern Xingtai and central and eastern Handan, strong winds with magnitude above 7 occurred in 8 1 county (city) in other areas of Hebei Province, and strong winds with magnitude above 10 occurred in Chengde County, Zanhuang, Shangyi, Xuanhua and Fuping, among which the maximum wind force in Chengde County reached16544.

Eleven gale generally refers to the wind with a wind speed of 28.5-32.6 m/s. When there is a wind with a level of 1 1, motorized sailboats can't sail, rough waves can drown small and medium-sized seagoing ships, and the sea surface is covered with white waves, which greatly reduces the visibility. There is little land, and if there is, there will be great disaster.

wind scale

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 magnitude of wind power is divided into 18, with the smallest being 0 and the largest being 17.

Wind speed is the forward speed of the wind. The greater the air pressure difference between two adjacent places, the faster the air flow, the greater the wind speed and the greater the wind force. Therefore, the magnitude of wind is usually expressed by wind power. The unit of wind speed is meters per second or kilometers per hour. When the weather forecast is released, the wind level is mostly used.