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 blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
An instrument for measuring atmospheric pressure.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...