Dark blue cloudy sky

What is Weather System?

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can be comprised of low pressure, which is associated with inclement weather, and high pressure, which typically brings more stable, pleasant weather.

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

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

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

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.