What is Air Mass?

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

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

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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

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

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

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...