What is Lightning?
A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or between a cloud and the ground.
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A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...