Dark blue cloudy sky

What is Clear?

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.

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Glossary

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

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

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