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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

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

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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