What is Hail?
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
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A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.