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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The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...
A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A type of cloud consisting mostly of small particles such as ice particles.
A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...