What is the symbol of hail?

The icon symbol of hail is a triangle.

From the semiotic point of view, polygons give people a sense of rotation to represent falling objects, but in fact, snow stars used to represent snow are also the deformation of polygons. A triangle is also a triangle, and the three sides rotate alternately to give people a sense of falling. A triangle has three angles, which gives people a sense of anxiety and crisis. Hail is a kind of disastrous weather, and the early warning function can be enhanced by using triangles. There are many such examples. Take a closer look at the warning signs around, which are generally triangular. So a triangle is used to represent hail.

Conditions of hail formation:

There must be a fairly thick unstable layer in the atmosphere, cumulus clouds must develop to the height that can freeze a single large water drop, there must be strong wind shear, the vertical thickness of the cloud should not be less than 6 ~ 8 kilometers, and there should be inclined, strong and uneven updraft in the cloud. Hail is very harmful to agriculture. Heavy hail will destroy crops and houses.