precipitation

Precipitation Types

It gets used over and over and over again through what is called the water cycle. How Clouds Form. How do clouds move?

Warm, moist air is cooled from below as it flows over a colder surface. You can see the same sort of thing at home The following examples show three different ways air is cooled causing rainfall.

As these larger water droplets descend, coalescence continues, so that drops become heavy enough to overcome air resistance and fall as rain. More important in the formation of heavier rain is a process that involves frozen particles. This can also happen without a dramatic mountain range, just when air travels over land that slopes upward and is forced to rise.

Clouds are white because their water droplets or ice crystals are large enough to scatter the light of the seven wavelengths red, orange, yellow, green, blue, indigo, and violet , which combine to produce white light. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers.

Water Vapor — when water from the Earth evaporates into the air, it becomes a gas and is called water vapor. What are clouds?

How Is Rain Formed - What Causes Rain? Cool Kid Facts

A hailstone bisected to show the layers. The water vapor rises in the atmosphere and there it cools down and forms tiny water droplets through something called condensation. Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather. The green color is not completely understood, but it is thought to have something to do with having a high amount of liquid water drops and hail inside the clouds.

Clouds And How They Form

Clouds that produce rain like nimbostratus and cumulonimbus are also common at warm fronts. Clouds As an air parcel rises it cools, the water vapour condensing when it reaches the dew point. Cloud Activities Lesson Plan: It can have all sorts of things in it like dirt, dust, insects, grass or even chemicals! In tropical regions, they may indicate an approaching hurricane. They form or have broken off from a larger cloud, and are generally sheared by strong winds, giving them a jagged, shredded appearance.

From the Blog! Green Clouds Green Clouds are often associated with severe weather.

Clouds And How They Form UCAR Center for Science Education

What is precipitation? This is followed by the condensation of atmospheric water vapor into drops of water that are heavy enough to fall, often making it to the surface. Well, sort of Essentially, Jupiter, Saturn , Uranus and Neptune all possess methane in their interiors.

They are also common in warm mountain areas like the European Alps in the summer.

Internet Geography

Precipitation amounts are also estimated actively by weather radar, and passively by weather satellites. As it rises, its pressure and temperature drop causing water vapor to condense. Then, droplets of water start to stick together as clouds. Contrails Contrails are condensation trails left behind jet aircrafts. Cloud Chart.