Jon Ahlquist Review of chap 14 Thunderstorms What is the definition of a thunderstorm To what does convective refer In what environment does an ordinary thunderstorm form What is an updraft A downdraft What does it mean to say that dry air is entrained into a cumulus cloud How does the appearance of a cumulus cloud show you that entrainment is occurring What 2 factors cause air to sink in a thunderstorm Thunderstorms Why is it common for a new thunderstorm cell to form at gust front particularly where gust fronts from two thunderstorms meet What is a multicell thunderstorm What is the definition of a severe thunderstorm What is different about the environment in which a long lasting severe thunderstorm develops compared to an ordinary thunderstorm What is a supercell Lightning and Thunder How fast does sound travel in ft per second How can you determine how far away a thunderstorm is by listening for thunder Describe the life cycle of a lightning flash Does lightning ever strike the same place twice What kind of rock is a fulgurite What should you do if you hear thunder that comes less than 30 seconds after you see lightning Is it safe to take shelter under a tree in a storm Explain MET1010 Intro to the Atmosphere 12 3 2006 Thunderstorms What is a cell in a thunderstorm How long does a cell last in an ordinary thunderstorm What is the life cycle of an ordinary thunderstorm At what stage in its life cycle does an ordinary thunderstorm have the most intense updraft What kills an ordinary thunderstorm What is a gust front What is it like if a gust front passes you Thunderstorms What is a shelf cloud A roll cloud What is a downburst A microburst Why is airplane during takeoff or landing particularly threatened by a microburst What is a derecho What is a squall line What travels out from a cold front that helps to initiate a squall line How can cells in a squall move from SW to NE but the squall line moves to the east i e to the right of the individual cells motion What regions of the US are most likely to have thunderstorms Which US regions have hail Tornadoes What is a tornado A funnel cloud How wide is a typical tornado During what part of day and time of year do most US tornadoes occur Which country has the most tornadoes What part of the US receives the most tornadoes What scale is used to rate tornado intensity A strong tornado has a ranking of what or higher according to the scale just mentioned Table 14 2 p 394 1 Jon Ahlquist Tornadoes If you are in an area that has a tornado warning what should you do Do this quickly because a typical tornado warning comes less than 10 15 minutes before a tornado hits What is a multi vortex tornado A suction vortex What is a mesocyclone What 2 step process causes mesocyclones to rotate around a vertical axis Step 1 involves rotation around a horizontal axis Step 2 takes this rotation and shifts it to a vertical axis What is a wall cloud p 397 MET1010 Intro to the Atmosphere 12 3 2006 Doppler Radar and Water Spouts What extra information can a Doppler radar provide that a radar without Doppler cannot What is the Doppler effect or Doppler shift What is a waterspout Where are waterspouts most common 2
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