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storms/weather-8th
tornados hurricanes and thunderstorms
| Question | Answer |
|---|---|
| thunderstorms | localized storms involving lightning, thunder, strong winds, heavy rain, and sometimes hail or tornadoes |
| stable | air that do not rise due to adiabatic cooling |
| unstable | rising air remains warmer than the surrounding air, allowing it to reach great heights. |
| cumulus | first stage of a thunderstorm that usually lasts for 10 to 15 minutes. |
| mature | second stage of a thunderstorm that usually lasts from 10 to 30 minutes |
| thunderstorm | One updraft system and one resulting thundercloud is known as a _____ cell |
| single | gone in less than an hour, single updraft and down draft where the downdraft kills it within the hour is a _____ cell thunderstorm |
| multi | storms that contain a number of cells each in a different stage of development is a ______ cell thunderstorm |
| downbursts | concentrated blasts of cool wind that can blow downward at 130 mile per hour or more created by localized downdrafts |
| microbursts | most intense downbursts |
| dissipating | last stage of a thunderstorm |
| cell | another name for updraft system |
| squall | a long line of advancing thunderstorms, usually moving ahead of a cold front |
| supercell | a thunderstorm supplied by a fierce, single-updraft giant |
| lightning | an abrupt discharge of electricity through the air that produces a quick flash of bright lights. |
| stepped leader | a stream of electrons that begins to move jerkily toward the ground is a _____ leader |
| positive streamer | rises to meet the stepped leader is a ________ streamer |
| return stroke | a huge current of positive charge that surges upward from the ground to the cloud. forms the brilliant flash of light that can be seen is a ________ stroke |
| dart | travels down the channel of stepped leader and does not move jerkily is a ________leader |
| thunder | the heat from the return stroke causes the air near the lightning bolt to expand explosively, forming a shock wave of sound |
| cloud-to-cloud | what kind of lightning causes sheet lightning? |
| heat | light from distant storms could be seen but not thunder is ______ lighting |
| tornadoes | a narrow funnel of powerful, rapidly whirling wind that stretches from a cloud to the ground. |
| mesocyclone | rotating updrafts found in many spupercell thunderstorms |
| wall | large, rotating cylindrical extension from the base of the supercell is a ____ cloud |
| condensation | a _____ funnel forms when air pulled up by a tornado condenses |
| Tornado | Mississippi Valley and eastern Great Plains is called ____________ alley |
| Fujita | scale devised by Dr. T. Theodore Fujita in 1971 to classify tornadoes based on intensity and area |
| Enhanced | the _________ Fujita scale is the more accurate version of F-scale |
| waterspout | when a tornado forms over water |
| dust | a_________ devil is rotating funnel that starts from the ground and picks up dust and light debris and carries these materials high into the air |
Created by:
rufuspat