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 cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...
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...