A large slow-moving area of updraught and downdraught which causes violent thunderstorms, heavy hail, and tornadoes.
〔气象〕超级单体（一大片缓慢移动的上升气流和向下气流，会引发猛烈的雷暴雨、大冰雹和龙卷风）
Example sentencesExamples
As mentioned earlier, a type of thunderstorm called a supercell creates the strongest tornadoes.
This disturbance provides the strong vertical wind shear that gives an updraft its twisting motion, turning a normal thunderstorm into a potentially tornado spawning supercell.
The supercell gets its rotation by tilting the winds; this causes the cell to grow faster and stronger.
In a strong supercell, like the one that hovered over Thayer and Hamilton counties Sunday night, hail develops and moves up and down in the center of the cell until it becomes so heavy it falls to the ground.
These state-of-the-art detection units allow forecasters to peek inside a supercell and look for a Tornado Vortex Signature, or TVS.
Definition of supercell in US English:
supercell
nounˈso͞opərˌsel
Meteorology
A system producing severe thunderstorms and featuring rotating winds sustained by a prolonged updraft that may result in hail or tornadoes.
Example sentencesExamples
This disturbance provides the strong vertical wind shear that gives an updraft its twisting motion, turning a normal thunderstorm into a potentially tornado spawning supercell.
In a strong supercell, like the one that hovered over Thayer and Hamilton counties Sunday night, hail develops and moves up and down in the center of the cell until it becomes so heavy it falls to the ground.
These state-of-the-art detection units allow forecasters to peek inside a supercell and look for a Tornado Vortex Signature, or TVS.
The supercell gets its rotation by tilting the winds; this causes the cell to grow faster and stronger.
As mentioned earlier, a type of thunderstorm called a supercell creates the strongest tornadoes.