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 long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

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

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

The narrow region between 35-40 ° N and S latitudes in the Northern and Southern Hemispheres, lying between the tropical...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

An instrument for measuring atmospheric pressure.

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...