Dark blue cloudy sky

What is Black Ice?

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt due to its transparency, thus posing a danger to drivers.

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Glossary

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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 strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

An instrument for measuring atmospheric pressure.

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

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