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

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...