What is La Niña?
A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global weather patterns such as reduced rainfall in some areas and increased rainfall in others.
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The narrow region between 35-40 ° N and S latitudes in the Northern and Southern Hemispheres, lying between the tropical...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...
The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...