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 strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...