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What is Precipitation?

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

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Glossary

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...