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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

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