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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CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...