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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

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

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

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....