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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

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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