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

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

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

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

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

A type of cloud consisting mostly of small particles such as ice particles.

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