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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Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...