What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.
A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...