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.

Glossary

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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