Traditional Culture Encyclopedia - Weather forecast - How are clouds formed? How do clouds turn into rain and snow and fall to the ground?

How are clouds formed? How do clouds turn into rain and snow and fall to the ground?

First, the formation of clouds

When air containing a lot of water vapor rises into the air, the temperature of water vapor decreases, and it liquefies into small water droplets or condenses into small ice crystals. These tiny particles can be carried up by the updraft to form clouds, so clouds are made up of a lot of water vapor and small ice crystals.

Second, the formation of rain.

Under certain conditions, water droplets and ice crystals in the cloud are getting bigger and bigger. When the updraft reaches a certain level, it will fall. In the process of falling, ice crystals melt into water droplets, which fall to the ground together with the original water droplets, forming rain.

Third, the formation of snow.

Sometimes the updraft is weak in winter, and the water vapor in the cloud condenses directly on small ice crystals to form snowflakes, which fall to the ground to form snow.

Extended data

1, fog usually appears in the early morning. When the water vapor in the air meets cold air or the ground temperature drops suddenly, it will liquefy into small water droplets and float in the air and dust to form fog.

2. When the ground temperature drops, the water vapor in the air will liquefy into small water droplets, which will attach to the ground or flowers and form dew when it is cold.

3. Because the water vapor in the air is directly condensed by cold. In winter nights, when the ground temperature drops below 0℃, the water vapor in the air will quickly condense on the ground and form small solid crystals, that is, frost.

In summer, the updraft is very strong and unstable, and small water droplets freeze into small hail in air convection. Small hailstones merge with small ice crystals and small water droplets in the process of flowing, forming large ice cubes. When such ice increases to a certain extent, the airflow can't support it, and it falls to the ground to form foreign hail.

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