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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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

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

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

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...