Dark blue cloudy sky

What is Relative Humidity?

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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Glossary

Snow that rises to 8 feet or higher.

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

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

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

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

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