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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Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
A very cold high pressure that originates over the Arctic Ocean.
A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.