How did the tornado form in Hengshan District of Jixi?

Today, we will talk about how tornadoes are formed.

Tornado is a very strong and dangerous cyclone, which usually occurs on land or at sea. The reason is that the tropical water vapor mass pushes northward, and there is interference air mass invading at high altitude, which leads to vortex motion and forms a thick cumulonimbus cloud. When the vortex moves more and more violently, the cloud will fall to the ground and form a funnel-shaped cloud column. Tornadoes are very strong and destructive.

Tornadoes usually occur in unstable air masses with high temperature and high humidity, because the air here is greatly disturbed and the temperature difference between the upper and lower parts is great.

When the ground temperature is about 30 degrees, and the temperature at an altitude of 8 kilometers has dropped to MINUS 30 degrees, this strong temperature difference will cause the cold air to drop sharply, while the hot air will rise rapidly, and the convection speed of the upper and lower air will be very fast, thus forming many small eddies, which will gradually expand and become large eddies with violent shocks.

Tornadoes are actually the product of thunderstorms in the clouds. Tornado is a form in which a small part of the huge energy of thunderstorm is released in a small area.

Tornadoes usually occur in thunderstorm weather in summer, and the most common attack range is between ten meters and hundreds of meters in the evening and afternoon, while the survival time of tornadoes is usually only a few minutes, and the longest is not more than a few hours. If the wind is particularly strong, the wind speed near the center can reach 100~200 meters per second, which is very destructive. Where tornadoes pass, they often overturn vehicles, destroy buildings and destroy buildings.

In fact, from the meteorological point of view, the reason for the formation of tornadoes is that the temperature difference between the upper and lower clouds is too large, resulting in a small vortex in which cold air drops and hot air rises. At this time, there will be pieces of cumulonimbus clouds in the sky, and these clouds will become cumulonimbus clouds in the vortex.

Based on the latent heat in the cloud, it will continue to heat up and produce a very powerful airflow, which is a tornado.