Rare! How can there be a small tornado on the wedding day of Shaanxi newcomers?

When the water on the ground is evaporated into steam and rises to the sky, due to the low temperature of the upper steam layer in the sky, the steam will shrink and fall due to the cold, and gradually become spiral in the process of falling. At the same time, the surrounding air keeps moving towards the center of the screw hole with this spiral, and the air pressure difference is getting bigger and bigger with this movement, which eventually produces a strong wind and eventually forms a tornado. ? A video of a mini tornado blowing suddenly during a wedding in Tongchuan, Shaanxi Province became popular on the Internet. Mr. Ma, the video photographer, said that when the wedding was held, the wind suddenly blew after the fireworks were released, and then that rare phenomenon appeared, which led many people to watch the filming. Netizen: Love comes too fast like a tornado! According to the Science and Technology Daily, tornado is a strong whirlwind produced by funnel-shaped clouds extending from the bottom of thunderstorm clouds to the ground, and it belongs to the product of strong thunderstorms in clouds.

So how did tornadoes form?

When the water on the ground is evaporated into steam and rises to the sky, due to the low temperature of the upper steam layer in the sky, the steam will shrink and fall due to the cold, and gradually become spiral in the process of falling. At the same time, the surrounding air keeps moving towards the center of the screw hole with this spiral, and the air pressure difference is getting bigger and bigger with this movement, which eventually produces a strong wind and eventually forms a tornado. According to the location of tornadoes, they can be divided into land tornadoes and water tornadoes.

Extended reading:

Tornado is a vertical hollow rotating airflow between the bottom of the vertical cloud system and the underlying surface, and it is a disastrous weather phenomenon at local scale. Tornadoes can be found in tropical and temperate regions, including the interior of the United States, western Australia and northeastern India. Tornadoes are seasonally weak, and can occur in spring, summer and autumn. According to the shape and environment, tornadoes can be divided into multi-vortex tornadoes, land tornadoes and waterspouts. Tornadoes are observed as long and narrow funnel clouds or similar forms of dust/water columns. Tornadoes usually have a wind speed of 30 to130m per second, a diameter of less than 2km, an activity range of 0 to 25km and a duration of about10min. The intensity can be divided into five grades according to the enhanced Fujita series? . Sandstorms and fire cyclones are cyclones similar to tornadoes, but not tornadoes? .

Tornado conditions include near-surface wind shear, vertical motion and energy instability. Thunderstorm is an ideal environment that can meet the above conditions, and it is also the main cause of tornado? Among them, the tornado caused by supercell is called supercell tornado, and other cases are called non-supercell tornado. Supercell tornadoes account for 80% of the total number of tornadoes, and their intensity and development scale are usually larger than those of non-supercell tornadoes. Tornado is a meteorological disaster. Modern weather forecast can warn tornadoes through high-frequency observation, but it requires high forecasting experience. In addition, some areas also carry out manual observation and data collection on tornadoes, namely? Storm tracking? Project.