A large rotating band of cloud extending downward from the base of a thunderstorm before a tornado forms is a ____ cloud.

Question

​A large rotating band of cloud extending downward from the base of a thunderstorm before a tornado forms is a ____ cloud.

BlackTom AI · Accepted Answer

The question asks for the specific term describing a large rotating band of cloud that extends downward from the base of a thunderstorm just before a tornado forms.

First, consider the core concept: a cloud feature preceding tornadoes often involves low-lying, rotating cloud structures associated with a supercell thunderstorm.

A) Wall cloud: This is the commonly used term for the curved, lowering, and often rotating portion of the cloud base that descends beneath the main updraft and can envelope the tornado area. The rotating nature and its association with tornadic activity make this the correct descriptor in meteorology.

B) Shelf cloud (or arcus cloud): This cloud forms as a wedge or arc at the leading edge of a thunderstorm gust front and generally does not exhibit the same localized rotation associated with tornado formation. It is more a boundary cloud than a rotating lowering.

C) Funnel cloud: This term refers to the rotating funnel that extends from the base of a thunderstorm and is a stage of tornado development, but it is typically described as the funnel itself, not a broad downward rotating cloud band from the base.

D) Cumulus congestus or cumulonimbus: These are broader storm cloud types or stages and do not specifically describe the rotating downward band preceding a tornado.

Given the description of a large rotating cloud extending downward from the base of a thunderstorm just before a tornado forms, the term that best matches is wall cloud, which is the distinctive rotating lowering beneath the storm base.

Note: In the provided data, the explicit option list is missing, but the commonly accepted meteorological term for this feature is wall cloud. The single-word answer “wall” appears to be a truncated form of that term. The more precise, widely used label is “wall cloud.”

ESCI 1012 (001) Quiz 4 Thunderstorms

A large rotating band of cloud extending downward from the base of a thunderstorm before a tornado forms is a ____ cloud.

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ESCI 1012 (001) Quiz 4 Thunderstorms

​A large rotating band of cloud extending downward from the base of a thunderstorm before a tornado forms is a ____ cloud.

查看解析

登录即可查看完整答案

类似问题

Refer to the visible (top) and IR (bottom) satellite images above. Stratus or altostratus clouds are most likely occurring at location _____.

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In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

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A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

更多留学生实用工具

希望你的学习变得更简单

A large rotating band of cloud extending downward from the base of a thunderstorm before a tornado forms is a ____ cloud.