What is La Niña?

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global weather patterns such as reduced rainfall in some areas and increased rainfall in others.

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Glossary

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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