How to draw tornado children's paintings?

Tornado children's painting method is as follows:

First: draw the ground when the tornado moves. You can draw a stone, a tree and a house with some simple shapes. You can draw them to the center of a tornado. Then use a lot of curved tornado bottoms to draw the dynamics of rotation, and then you can draw some lines and small pieces.

Second: Then draw the lower part of the tornado, which is very small and twisted (spiral pattern), and draw many interconnected curves as the spiral pattern of the tornado.

Third: in a tornado, the body will gradually become larger with the upward airflow and turn sharply to the left (the rotation direction can be arbitrary).

Fourth: Then draw some clouds gathered on the head of the tornado. You can use many uneven lines to create fluffy clouds.

Fifth: Finally, draw the overall bright outline of the tornado with more curves.

tornado

That is, the violently rotating funnel-shaped cloud column extending from the cumulonimbus cloud. It is a vertical hollow rotating airflow between the bottom of cumulus 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. It usually occurs at the turn of spring and summer or in the transitional season (April ~ 10) at the turn of summer and autumn, and the former is mostly.

Tornadoes can be divided into multi-vortex tornadoes, land tornadoes, waterspouts and so on. According to their shape and production environment.

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. According to the enhanced Fujita scale (EF), the intensity of tornadoes can be divided into five grades. . Sandstorms and fire cyclones are similar to tornadoes, but they are not tornadoes? .