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What is Weather?

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which is why it can be difficult to forecast.

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Glossary

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

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

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

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

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

The branch of science dealing with the laws of motion of air or other gases.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...