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 line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...
A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
A cloud of irregular appearance, composed of irregular cloud fragments.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...