Dark blue cloudy sky

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 storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...