Dark blue cloudy sky

What is Arctic High?

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

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Glossary

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

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.

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

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

A large body of air having similar horizontal temperature and moisture characteristics.

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...