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 storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
An instrument for measuring atmospheric pressure.
Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A mass of very cold, dry air that mostly originates over the Arctic Ocean.