What is Air Mass?

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

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

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

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

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...