What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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The amount of water vapor present in the air, which can affect comfort levels and weather conditions.
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...