What is Trough?
An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms and rain.
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A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.