What is Black Ice?
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt due to its transparency, thus posing a danger to drivers.
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The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
An instrument for measuring atmospheric pressure.
A very cold high pressure that originates over the Arctic Ocean.
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.