Dark blue cloudy sky

What is Barometer?

An instrument for measuring atmospheric pressure.

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Glossary

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

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

A cloud of irregular appearance, composed of irregular cloud fragments.

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

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

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

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

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