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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An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...