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chapter 9.1 Quiz

feb.26 2013

QuestionAnswer
what are the two conditions required to form a thunderstorm? a strong updraft; unstable air
what term refers to a thunderstorm with a single, giant, rotating updraft? supercell
what is a short-lived, bright flash of light produced by an abrupt discharge of electricity through the air? lightning
what phase of a lightning bolt is seen as a brilliant flash of light? return srtoke
what is a tornado? a narrow funnel of powerful, rapidly whirling wind that stretches from a cloud to the ground
what is a tornado that forms over water called? waterspout
the arrival of precipitatin at the earths surface marks the beginning of what stage? mature stage
what stage usually lasts for 10-15 minutes and forms a billowing, rapidly growing cumulus cloud; inside the upper levels of cloud, ice crystals & supercooled water droplets begin to form. cumulus stage
what are very strong, localized downdrafts downbursts
smallest, most intense downbursts are called what? microbursts
what is a squall line? a long line of advancing thunderstorms, usually moving ahead of a cold front
most powerful type of thunderstorm;a fierce, single-updraft giant supercell
another word for an updraft system in a thunderstorm? cell
Created by: mollykw6
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