What is Relative Humidity?
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
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Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
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 sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
Snow that rises to 8 feet or higher.
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...