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 formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

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

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

A large body of air having similar horizontal temperature and moisture characteristics.

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

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

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

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....