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 towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...
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 continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...
A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...