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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The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
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.
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...