WEBVTT FILE 1 00:00:00.000 --> 00:00:03.310 As we head into the 2015 Atlantic hurricane season, 2 00:00:03.310 --> 00:00:06.380 I bet you didn’t realize it’s been nine years 3 00:00:06.380 --> 00:00:09.460 since the United States has had a hurricane make landfall 4 00:00:09.460 --> 00:00:11.680 that’s been category 3 or higher. 5 00:00:11.680 --> 00:00:13.690 A category 3 or higher hurricane 6 00:00:13.690 --> 00:00:15.530 is considered a major storm 7 00:00:15.530 --> 00:00:18.290 with winds greater than 111mph. 8 00:00:18.290 --> 00:00:20.490 Of course, storms less than Category 3, 9 00:00:20.490 --> 00:00:25.240 like Hurricane Sandy still wreaked havoc with heavy rains and coastal storm surges. 10 00:00:25.240 --> 00:00:30.020 So how rare is it for the U.S. to avoid a major storm for nine years 11 00:00:30.020 --> 00:00:33.330 Let’s look back at the actual record of hurricane tracks 12 00:00:33.330 --> 00:00:35.760 for the last several decades. 13 00:00:35.760 --> 00:00:38.320 Green and yellow lines means they didn’t make landfall 14 00:00:38.320 --> 00:00:40.830 or they did and weren’t major hurricanes. 15 00:00:40.830 --> 00:00:44.750 Red lines are the major hurricanes that did make landfall. 16 00:00:44.750 --> 00:00:48.750 Some years like 1964, 2004, and 2005 17 00:00:48.750 --> 00:00:51.840 have seen 2 or more storms hit our coasts. 18 00:00:51.840 --> 00:00:54.420 We can also see that gaps of a few seasons 19 00:00:54.420 --> 00:00:56.410 with no major storms is common. 20 00:00:56.410 --> 00:00:59.470 But none as long as nine years. 21 00:00:59.470 --> 00:01:02.680 A new NASA study used a model to gauge hurricane activity. 22 00:01:02.680 --> 00:01:06.850 They found that every year, there’s roughly a 40 percent chance 23 00:01:06.850 --> 00:01:09.150 that one or more category 3 storms 24 00:01:09.150 --> 00:01:10.470 will make landfall. 25 00:01:10.470 --> 00:01:16.660 And that a nine year gap only comes along every 177 years. 26 00:01:16.660 --> 00:01:19.570 But that doesn’t make a major storm any more likely for this year. 27 00:01:19.570 --> 00:01:22.220 Just like when you flip a coin 9 times in a row 28 00:01:22.220 --> 00:01:24.200 and you get tails every time, 29 00:01:24.200 --> 00:01:27.910 the odds of heads versus tails on that tenth flip remain the same. 30 00:01:27.910 --> 00:01:31.520 Just to be clear, it hasn’t been a quiet nine years for hurricanes. 31 00:01:31.520 --> 00:01:32.890 They’ve been out there. 32 00:01:32.890 --> 00:01:36.420 It’s just that the major storms haven’t made landfall. 33 00:01:36.420 --> 00:01:39.830 Scientists say they haven’t found a single persistent cause for this, 34 00:01:39.830 --> 00:01:45.205 it could just be luck.