Hail storm. View of a cumulonimbus hail storm cloud in a desert. Hail is a form of precipitation made up of balls of ice and snow. The hail forms in cumulonimbus clouds due to the violent convection currents present in these clouds. Particles of rain or snow are drawn vertically up through the cloud,and collide with supercooled water and other particles. These collisions lead to the particles sticking together. When they become too heavy to be supported by the air currents,they fall to earth. Some hailstones can be over 10 centimetres across,and cause severe damage to property and crops. Photographed in the Black Rock Desert,Nevada,USA | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Post, George |
Taille de l’image : | 5030 px × 3371 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |