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.”

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

类似问题

(Lesson 6.02) A person identifies low-altitude nimbostratus clouds in the area. What could these clouds indicate about the weather in the near future?

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

Before the warm front arrives, the cloud cover would be

After the cold front arrives, the cloud cover would be

Before the cold front arrives, the cloud cover would be

In which security measure will you find anti-virus software?

What are user permissions?

Which security measure will stop someone reading your messages if they find your smart phone?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

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.单项选择题