What is Relative Humidity?
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
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A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
An instrument for measuring atmospheric pressure.
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.