What is Hail?
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
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The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.