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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Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...
A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
A large body of air having similar horizontal temperature and moisture characteristics.
Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....