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What is Relative Humidity?

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

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Glossary

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...

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

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....