What is Relative Humidity?

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

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

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

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...