Dark blue cloudy sky

What is Cirrostratus?

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

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Glossary

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...