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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A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A large body of air having similar horizontal temperature and moisture characteristics.
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.