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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An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...
The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.
Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The branch of science dealing with the laws of motion of air or other gases.
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...