What is Air Mass?

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...