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 core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
The narrow region between 35-40 ° N and S latitudes in the Northern and Southern Hemispheres, lying between the tropical...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
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 long, narrow region in the atmosphere that transport water vapor, like a river in the sky.
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...