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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 periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

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

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

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

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

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

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

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

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

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