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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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.
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A very cold high pressure that originates over the Arctic Ocean.
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A type of cloud consisting mostly of small particles such as ice particles.