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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Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...
A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...
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.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

