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 bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...