What is Clear?
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.
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A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
The branch of science dealing with the laws of motion of air or other gases.
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.