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.
Glossary
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
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