What is Hail?

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

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

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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