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 weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.