What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
Snow that rises to 8 feet or higher.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...