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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An instrument for measuring atmospheric pressure.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.
Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...