What is Hail?

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

An instrument for measuring atmospheric pressure.

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

A very cold high pressure that originates over the Arctic Ocean.

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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