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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

Snow that rises to 8 feet or higher.

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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