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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 percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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