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...
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...