What is Mesocyclone?
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with a funnel cloud or tornado cloud beneath it and detectable on Doppler radar.
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Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A very cold high pressure that originates over the Arctic Ocean.
A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.