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  "events": [ {
    "tStartMs": 6627,
    "dDurationMs": 2336,
    "segs": [ {
      "utf8": "They call me the tornado chaser."
    } ]
  }, {
    "tStartMs": 8963,
    "dDurationMs": 2503,
    "segs": [ {
      "utf8": "When the wind is up \nand conditions are right,"
    } ]
  }, {
    "tStartMs": 11549,
    "dDurationMs": 3253,
    "segs": [ {
      "utf8": "I get in my car and follow violent storms."
    } ]
  }, {
    "tStartMs": 14802,
    "dDurationMs": 4129,
    "segs": [ {
      "utf8": "“Crazy,” you say? Perhaps, but really\nI chase these sky beasts"
    } ]
  }, {
    "tStartMs": 18931,
    "dDurationMs": 1043,
    "segs": [ {
      "utf8": "to learn about them."
    } ]
  }, {
    "tStartMs": 20099,
    "dDurationMs": 2378,
    "segs": [ {
      "utf8": "I want to share with you what I know."
    } ]
  }, {
    "tStartMs": 22560,
    "dDurationMs": 4963,
    "segs": [ {
      "utf8": "Tornadoes are rapidly rotating columns\nof air that form inside storms"
    } ]
  }, {
    "tStartMs": 27523,
    "dDurationMs": 3087,
    "segs": [ {
      "utf8": "that connect with the ground via\na funnel of cloud."
    } ]
  }, {
    "tStartMs": 30610,
    "dDurationMs": 2627,
    "segs": [ {
      "utf8": "When that happens, \nthey tear across the Earth,"
    } ]
  }, {
    "tStartMs": 33237,
    "dDurationMs": 3045,
    "segs": [ {
      "utf8": "posing a huge threat to life and property."
    } ]
  }, {
    "tStartMs": 36324,
    "dDurationMs": 3670,
    "segs": [ {
      "utf8": "Because of this, there's a great deal\nof research into these phenomena,"
    } ]
  }, {
    "tStartMs": 39994,
    "dDurationMs": 4671,
    "segs": [ {
      "utf8": "but the truth is, there's still a lot\nwe don't know about how tornadoes form."
    } ]
  }, {
    "tStartMs": 44749,
    "dDurationMs": 2627,
    "segs": [ {
      "utf8": "The conditions that may \ngive rise to one tornado"
    } ]
  }, {
    "tStartMs": 47376,
    "dDurationMs": 2378,
    "segs": [ {
      "utf8": "won't necessarily cause another."
    } ]
  }, {
    "tStartMs": 49921,
    "dDurationMs": 4337,
    "segs": [ {
      "utf8": "But we have learned a lot since\npeople first started recording tornadoes,"
    } ]
  }, {
    "tStartMs": 54258,
    "dDurationMs": 3921,
    "segs": [ {
      "utf8": "like how to recognize the signs\nwhen one is brewing in the sky."
    } ]
  }, {
    "tStartMs": 58429,
    "dDurationMs": 1960,
    "segs": [ {
      "utf8": "Are you coming along for the ride?"
    } ]
  }, {
    "tStartMs": 60389,
    "dDurationMs": 4380,
    "segs": [ {
      "utf8": "Tornadoes begin with a thunderstorm\nbut not just any thunderstorm."
    } ]
  }, {
    "tStartMs": 64936,
    "dDurationMs": 4671,
    "segs": [ {
      "utf8": "These are especially powerful,\ntowering thunderstorms called supercells."
    } ]
  }, {
    "tStartMs": 69607,
    "dDurationMs": 4004,
    "segs": [ {
      "utf8": "Reaching up to over 50,000 feet,\nthey bring high force winds,"
    } ]
  }, {
    "tStartMs": 73611,
    "dDurationMs": 5130,
    "segs": [ {
      "utf8": "giant hailstones, sometimes flooding,\nand great flashes of lightning, too."
    } ]
  }, {
    "tStartMs": 79158,
    "dDurationMs": 2878,
    "segs": [ {
      "utf8": "These are the kinds of storms\nthat breed tornadoes,"
    } ]
  }, {
    "tStartMs": 82078,
    "dDurationMs": 4004,
    "segs": [ {
      "utf8": "but only if there are also very\nspecific conditions in place,"
    } ]
  }, {
    "tStartMs": 86082,
    "dDurationMs": 4463,
    "segs": [ {
      "utf8": "clues that we can measure and look out for\nwhen we're trying to forecast a storm."
    } ]
  }, {
    "tStartMs": 91045,
    "dDurationMs": 4296,
    "segs": [ {
      "utf8": "Rising air is the first ingredient needed\nfor a tornado to develop."
    } ]
  }, {
    "tStartMs": 95424,
    "dDurationMs": 2837,
    "segs": [ {
      "utf8": "Any storm is formed \nwhen condensation occurs,"
    } ]
  }, {
    "tStartMs": 98261,
    "dDurationMs": 1877,
    "segs": [ {
      "utf8": "the byproducts of the clouds."
    } ]
  }, {
    "tStartMs": 100138,
    "dDurationMs": 2002,
    "segs": [ {
      "utf8": "Condensation releases heat,"
    } ]
  }, {
    "tStartMs": 102140,
    "dDurationMs": 4295,
    "segs": [ {
      "utf8": "and heat becomes the energy that drives\nhuge upward drafts of air."
    } ]
  }, {
    "tStartMs": 106519,
    "dDurationMs": 3337,
    "segs": [ {
      "utf8": "The more condensation\nand the bigger the storm clouds grow,"
    } ]
  }, {
    "tStartMs": 109856,
    "dDurationMs": 2585,
    "segs": [ {
      "utf8": "the more powerful those updrafts become."
    } ]
  }, {
    "tStartMs": 112567,
    "dDurationMs": 4421,
    "segs": [ {
      "utf8": "In supercells, this rising airmass \nis particularly strong."
    } ]
  }, {
    "tStartMs": 117363,
    "dDurationMs": 4338,
    "segs": [ {
      "utf8": "As the air climbs, it can change direction\nand start to move more quickly."
    } ]
  }, {
    "tStartMs": 121868,
    "dDurationMs": 3169,
    "segs": [ {
      "utf8": "Finally, at the storm's base,\nif there is a lot of moisture,"
    } ]
  }, {
    "tStartMs": 125037,
    "dDurationMs": 1919,
    "segs": [ {
      "utf8": "a huge cloud base develops,"
    } ]
  }, {
    "tStartMs": 126956,
    "dDurationMs": 2336,
    "segs": [ {
      "utf8": "giving the tornado something\nto feed off later,"
    } ]
  }, {
    "tStartMs": 129292,
    "dDurationMs": 1626,
    "segs": [ {
      "utf8": "if it gets that far."
    } ]
  }, {
    "tStartMs": 131127,
    "dDurationMs": 4379,
    "segs": [ {
      "utf8": "When all these things are in place, a\nvortex can develop enclosed by the storm,"
    } ]
  }, {
    "tStartMs": 135506,
    "dDurationMs": 4713,
    "segs": [ {
      "utf8": "and forming a wide, tall tube of spinning\nair that then gets pulled upwards."
    } ]
  }, {
    "tStartMs": 140261,
    "dDurationMs": 2336,
    "segs": [ {
      "utf8": "We call this a mesocyclone."
    } ]
  }, {
    "tStartMs": 142638,
    "dDurationMs": 2336,
    "segs": [ {
      "utf8": "Outside, cool, dry, sinking air"
    } ]
  }, {
    "tStartMs": 144974,
    "dDurationMs": 2920,
    "segs": [ {
      "utf8": "starts to wrap around the back of\nthis mesocyclone,"
    } ]
  }, {
    "tStartMs": 148019,
    "dDurationMs": 2878,
    "segs": [ {
      "utf8": "forming what’s known\nas a rear flank downdraft."
    } ]
  }, {
    "tStartMs": 151147,
    "dDurationMs": 3211,
    "segs": [ {
      "utf8": "This unusual scenario creates \na stark temperature difference"
    } ]
  }, {
    "tStartMs": 154358,
    "dDurationMs": 4004,
    "segs": [ {
      "utf8": "between the air inside the mesocyclone,\nand the air outside,"
    } ]
  }, {
    "tStartMs": 158404,
    "dDurationMs": 3962,
    "segs": [ {
      "utf8": "building up a level of instability\nthat allows a tornado to thrive."
    } ]
  }, {
    "tStartMs": 162450,
    "dDurationMs": 3086,
    "segs": [ {
      "utf8": "Then, the mesocyclone's lower part\nbecomes tighter,"
    } ]
  }, {
    "tStartMs": 165536,
    "dDurationMs": 2461,
    "segs": [ {
      "utf8": "increasing the speed of the wind."
    } ]
  }, {
    "tStartMs": 168039,
    "dDurationMs": 3378,
    "segs": [ {
      "utf8": "If, and that's a big if,\nthis funnel of air moves down"
    } ]
  }, {
    "tStartMs": 171417,
    "dDurationMs": 3879,
    "segs": [ {
      "utf8": "into that large, moist cloud base\nat the bottom of the parent storm,"
    } ]
  }, {
    "tStartMs": 175421,
    "dDurationMs": 3545,
    "segs": [ {
      "utf8": "it sucks it in and turns it \ninto a rotating wall of cloud,"
    } ]
  }, {
    "tStartMs": 178966,
    "dDurationMs": 3462,
    "segs": [ {
      "utf8": "forming a link between the storm\nthat created it and the Earth."
    } ]
  }, {
    "tStartMs": 182511,
    "dDurationMs": 2837,
    "segs": [ {
      "utf8": "The second that tube of\nspinning cloud touches the ground,"
    } ]
  }, {
    "tStartMs": 185348,
    "dDurationMs": 1877,
    "segs": [ {
      "utf8": "it becomes a tornado."
    } ]
  }, {
    "tStartMs": 187642,
    "dDurationMs": 5463,
    "segs": [ {
      "utf8": "Most are small and short-lived,\nproducing winds of 65-110 miles per hour,"
    } ]
  }, {
    "tStartMs": 193272,
    "dDurationMs": 4880,
    "segs": [ {
      "utf8": "but others can last for over an hour,\nproducing 200 mile per hour winds."
    } ]
  }, {
    "tStartMs": 198444,
    "dDurationMs": 2294,
    "segs": [ {
      "utf8": "They are beautiful but terrifying,"
    } ]
  }, {
    "tStartMs": 200738,
    "dDurationMs": 3295,
    "segs": [ {
      "utf8": "especially if you or your town\nis in its path."
    } ]
  }, {
    "tStartMs": 204200,
    "dDurationMs": 3670,
    "segs": [ {
      "utf8": "In that case, no one,\nnot even tornado chasers like me,"
    } ]
  }, {
    "tStartMs": 207870,
    "dDurationMs": 2378,
    "segs": [ {
      "utf8": "enjoy watching thing unfold."
    } ]
  }, {
    "tStartMs": 210581,
    "dDurationMs": 3754,
    "segs": [ {
      "utf8": "Just like everything, however,\ntornadoes do come to an end."
    } ]
  }, {
    "tStartMs": 214418,
    "dDurationMs": 3754,
    "segs": [ {
      "utf8": "When the temperature difference disappears\nand conditions grow more stable,"
    } ]
  }, {
    "tStartMs": 218172,
    "dDurationMs": 1960,
    "segs": [ {
      "utf8": "or the moisture in the air dries up,"
    } ]
  }, {
    "tStartMs": 220216,
    "dDurationMs": 2836,
    "segs": [ {
      "utf8": "the once fierce parent storm\nloses momentum"
    } ]
  }, {
    "tStartMs": 223052,
    "dDurationMs": 2294,
    "segs": [ {
      "utf8": "and draws its tornado back inside."
    } ]
  }, {
    "tStartMs": 225513,
    "dDurationMs": 4755,
    "segs": [ {
      "utf8": "Even so, meteorologists and storm chasers\nlike me will remain on the lookout,"
    } ]
  }, {
    "tStartMs": 230268,
    "dDurationMs": 5338,
    "segs": [ {
      "utf8": "watching, always watching to see\nif the storm releases its long rope again."
    } ]
  } ]
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