What is Circulation?

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

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

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...