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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Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...
A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...