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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The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...
Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...