Why hail in the summer Why hail in the summer

The reasons for this are as follows

In summer, the weather is hot, and the sun bakes the earth, which is prone to produce a lot of hot and humid air near the ground. Hot and humid air rises rapidly and the temperature drops rapidly, sometimes as low as -3. The water vapor in the hot air condenses into water droplets when it hits the cold air and quickly freezes to form Xiaoice beads.

The Xiaoice beads tumbled up and down in the clouds, constantly absorbing and condensing the surrounding water droplets into ice, becoming heavier and heavier, and finally smashed down from the sky, which is hail.

Physics] [Liquefaction, Sublimation and Condensation] - Why does it hail in summer?

Hail is a solid precipitation that, like rain and snow, falls from clouds. It is a hard spherical, cone-shaped or irregular solid precipitation that falls to the ground from a strongly developing cumulonimbus cloud, which is called "hail", "ice egg", "cold seed" and so on by the masses in different places. Common hailstones are the size of a bean, but there are also eggs or larger, sometimes a fusion of several ice grains.

Hail mostly occurs from April to July, when the warm air is gradually active and the cold air activity is still frequent. Hail falls mostly at 14-17 o'clock and lasts for a short time, generally within a few minutes to less than half an hour. Hail falls are often distributed in bands, usually only 1-2 km wide, and rarely exceed a few km.

Generally speaking, the number of hailstorms is more in the mountains than in the plains, more in the middle latitudes than in the high latitudes, and more inland than in the coast.

Hail clouds are made up of water droplets, ice crystals, and snowflakes. Generally, there are three layers: the bottom layer has a temperature above 0 and is composed of water droplets; The intermediate temperature is 0 to -20 and consists of supercooled water droplets, ice crystals and snowflakes; The top layer has a temperature below -20 and is basically made up of ice crystals and snowflakes.

There will be different weather conditions in our daily life, sometimes it will rain, sometimes it will snow, and sometimes it will hail, hail is more common in some areas, and hail in summer is the most common, in fact, summer hail will appear in every season, but it is more common in summer.

01 The principle of hail is actually the same as rain and snow, both fall from the clouds, hail is a kind of solid precipitation, because there are drastic changes in the clouds, resulting in a hard ball or other shape when it falls to the ground, in many areas have different names, but the meteorological bureau generally calls this phenomenon hail, hail needs to meet two conditions.

02 The first is the need to have sufficient water vapor, the second is the need for strong convection air, these two conditions are changed in the clouds, in the summer temperature is relatively hot, many people feel that hail is a kind of ice, its temperature is relatively low, in the summer hot weather reasons, he should not become solid precipitation, this is because although the surface temperature is relatively high, but in the clouds high is still relatively cold, so when encountering strong convective air then will form Xiaoice, And these ice cubes will be mixed with some small water droplets when they fall, and the temperature of these small water droplets is also relatively low, so they will combine to form hail in the air when they land, so when hail, there will generally be a lot of rainfall.

03 Hail will also have a certain impact on our daily life, sometimes it will suddenly rain in the process of driving a car, which is a more dangerous thing for people who drive, so human beings are unable to control these natural weather changes, in daily life for their own safety and prevention of these bad weather must be in place, so as to avoid more of their own impact.