Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the earth. If a cloud is colder, like it would be at higher altitudes, the water droplets may freeze to form ice.
Describe How Precipitation Forms?
Precipitation is simply condensed water vapour that falls from clouds in the sky. It can form in a variety of ways, but the most common are through condensation and coalescence.
Condensation is the process by which water vapour in the atmosphere is cooled to a temperature at which it can no longer remain in the form of a gas and is forced to form droplets of liquid.
This happens when air rises and cools, or when air is cooled by contact with a cold surface. Warm air can hold more water vapour than cold air, so when air becomes colder, the water vapour that it contains is forced to condense.
The result is tiny droplets of liquid water which, when enough of them form, become visible to the eye as clouds. Coalescence is what happens when two or more droplets of liquid water join together to form one larger droplet.
This process occurs when droplets collide with each other and the combined surface tension of the droplets is not enough to keep them apart.
Over time, these droplets become heavier and heavier until they are too heavy to be held up by the air and they begin to fall as rain. The type of precipitation that is formed depends on the temperature