NTSB investigating duck boat accident

Were critical weather warning signs missed that could have prevented the tragedy?
2:16 | 07/21/18

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Transcript for NTSB investigating duck boat accident
enormous amount -- an inulable amot processing to come How mh warning E crew had about the dangerous weather condions. That'shing authorities will be looking into. S erielle she joins us with more on that part of the or erielle. Reporter: Good morning, jea. Some now calling this a tragedy the should have happened. The NTSB and the U.S. T guard are now investigating whether the duck boat shou have ever been in the water in the first place. W details this morning about that fateful evening on table rock Lin Branson miouri. Authorities now investigating whether the operators ofs duck boatour haough time turn that vessel around and get 29ssengers to safe 11:20 A.M., the national weather see issuing a thderstorm wch for portions of western and central Missouri until 9:00 P.M. Highlighting pontial for damagiinds and rge hail. 6:30 P.M severe thderstorm warning for the area, this time specifically includiable ake. Just take a look right there in the center. Sehe thick R line Branson caught right in the middle. The rough and Y condition the water seen heus hours before the tragic accident. Be advised we have strong thunderstorms moving through right noine winds anrain in Branson. 7:00 M., those severe thunderstorms turning deadly for passengers the boats crushed by six-fo we capsizing. A phone ierview with "CBS ning," the president of the company that owned that duck saying none was expect the Orm. Of those9 passenger and 2 crew members on board 17 did not survive including the boat's , rt William cril condition the viims' ages nging from 1 to6. Ss of the psonal flotation devices on board, whetr they werworn will defitely be a focus the instigation. Reporter: And the NTSB says will be scene for at lea ys gather information. The investio to take up to a year to complete. T the initial findings, guys, cod be relead within the next month so we'll know a lot more within ne Huge tions and incredibly high stakes. Erielle, tnk you very much.

This transcript has been automatically generated and may not be 100% accurate.

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