How are hailstones?
Smalling is formed when small clusters of ice, held at the top with strong updrafts, blow through freezing thunders until they are sufficiently heavy to fall on the ground. Most large thunderstorms create a little hail, but the right conditions must be present in order for the hail to increase, freeze the solid and then survive until the ground reaches. The ideal conditions for hail are high clouds that reach high into the atmosphere, many swirling updraffes, such as tornado and low temperatures inside and below the storm.
begins with the core
Řehový stone begins to form as an ice core, a small cluster of super -chilled droplets of water or a cluster of snow. This center could continue to accumulate ice, melt in ThunderCloud and turn to rain or be crushed by other clusters. If a bug, a piece of dirt, seed or other small particles becomes a blow into the cloud, it creates another possible core for hail.
Ice layers
If the SchelStomm is cool enough, this icy cluster will beaccumulating layers of ice as a soaked candle accumulates a layer of wax through a process called increasing. Opaque, whitish layers are formed when the ice droplets capture air bubbles and stick to the cluster. Clean layers have accumulated large drops of super -cooled water that froze when they encounter hail. Of course, much larger hail can be made when two smaller freezes together.
increases in weight
hail can grow more layers when hail blows with layers of thunderstorm. Even heavy hail can be kept at the fair of sufficiently strong updraft. When hail falls back storms for gravity, it accumulates even more layers until it is as difficult that it falls like a clotting. The hail hair is formed in most tall storm clouds Kumulonimbus that will reach a cooler upper atmosphere, but not all hailstones survive after the bouŘKY. Several outer layers often melt when hail mixes with other collisions such as snow and rain.
size
The size of fully created hail may vary from pinheads to softballs. There are official categories of size for hail that are useful for measuring damage they can cause. Some hail were measured to more than 6 inches (15.24 cm) over and more than 1 pound (0.45 kg) of weight. However, most hail are over less than 0.5 inches (1.27 cm).