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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

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

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

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

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