Dark blue cloudy sky

What is Isobar?

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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Glossary

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...