What is Heat Index?
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the 'apparent temperature.'
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An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...