What is Clear?
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility. Clear sky. In meteorology, this term is also used when the cloud cover is less than 1/8 during the day or at the observation hour.
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A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
Snow that rises to 8 feet or higher.