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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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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