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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Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
A type of cloud consisting mostly of small particles such as ice particles.
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...