What is Lightning?
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or between a cloud and the ground.
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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.
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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...
A type of cloud consisting mostly of small particles such as ice particles.
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...