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 term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...
A cloud of irregular appearance, composed of irregular cloud fragments.
A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...