What is Relative Humidity?

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

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

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

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...