What is Precipitation?
Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.
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A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
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 sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.