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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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

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...

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

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

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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