1 00:00:05,670 --> 00:00:03,510 looking at severe weather event after 2 00:00:09,350 --> 00:00:05,680 severe weather event we found it to be 3 00:00:11,190 --> 00:00:09,360 important to study cloud tops 4 00:00:13,910 --> 00:00:11,200 using this latest generation satellite 5 00:00:15,589 --> 00:00:13,920 technology we have found these clouds 6 00:00:16,630 --> 00:00:15,599 that are a bit odd and look a bit 7 00:00:18,870 --> 00:00:16,640 unusual 8 00:00:21,109 --> 00:00:18,880 it looks a bit like smoke and it also 9 00:00:24,150 --> 00:00:21,119 has a very warm appearance 10 00:00:27,349 --> 00:00:24,160 when you look at storms that produce the 11 00:00:29,750 --> 00:00:27,359 really damaging tornadoes and large hail 12 00:00:32,310 --> 00:00:29,760 you're taking very unstable air hot and 13 00:00:34,389 --> 00:00:32,320 humid air near to the ground and raising 14 00:00:37,110 --> 00:00:34,399 it up into the upper atmosphere very 15 00:00:38,470 --> 00:00:37,120 very fast and then it hits the layer of 16 00:00:40,549 --> 00:00:38,480 the atmosphere above called the 17 00:00:43,350 --> 00:00:40,559 stratosphere 18 00:00:45,590 --> 00:00:43,360 clouds that are especially strong eject 19 00:00:47,990 --> 00:00:45,600 into the stratosphere it's like a smoke 20 00:00:49,430 --> 00:00:48,000 plume emerging from those bubbling 21 00:00:51,590 --> 00:00:49,440 updrafts 22 00:00:53,590 --> 00:00:51,600 and because the stratosphere is warmer 23 00:00:55,110 --> 00:00:53,600 you can see this pattern 24 00:00:58,069 --> 00:00:55,120 one of the most exciting things that we 25 00:01:00,630 --> 00:00:58,079 found in this research is that over 85 26 00:01:03,189 --> 00:01:00,640 of the really damaging storms produce 27 00:01:05,670 --> 00:01:03,199 this kind of smoke-like plume and also 28 00:01:07,910 --> 00:01:05,680 this plume pattern tends to occur about 29 00:01:09,990 --> 00:01:07,920 30 minutes prior to when the severe 30 00:01:12,230 --> 00:01:10,000 weather events are happening and so this 31 00:01:14,950 --> 00:01:12,240 is especially valuable for the public at 32 00:01:17,190 --> 00:01:14,960 large a forecaster can instantly see 33 00:01:18,390 --> 00:01:17,200 this pattern when it emerges in a cloud 34 00:01:20,230 --> 00:01:18,400 and they're going to be able to issue 35 00:01:22,789 --> 00:01:20,240 warnings faster and tell people to take 36 00:01:24,870 --> 00:01:22,799 cover or get their belongings inside 37 00:01:27,109 --> 00:01:24,880 satellites observe everywhere all the 38 00:01:29,109 --> 00:01:27,119 time so being able to do something that 39 00:01:31,510 --> 00:01:29,119 helps warning just from a satellite