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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The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.