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 formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.
The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...