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What is Weather?

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which is why it can be difficult to forecast.

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Glossary

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

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

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...

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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