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 weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.