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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The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...