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 decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...
A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.