I was in some school/mall (?) building in Kentucky, passing by some shops and walking through a sparse crowd of people from school. I was headed to the public bathrooms. On the way there, I passed several people that I knew or liked or something. It was a long hallway, but I reached the bathrooms, where a bunch of teens were crowded around the doors waiting to go in. I accidentally walked into the men's bathroom at first, but it was no big deal; when I went into the women's, there were some guys that had mistakenly gone in there. (When I was opening the door, I had made eye contact with a cute guy or some shit idk.) Two girls I know are in there, Hailey and Sophie, I think. We talked a bit and Hailey did something really risky, but I can't remember what she did or how she did it; all I know now is that it would later lead to the building being flooded. We didn't think anything of it at the time. So next thing I know I'm outside in a car, nothing unusual, on a highway that's taller than the building. The building looked a lot like the Eiffel Tower, especially in height. Suddenly though, I saw the whole thing was being flooded. Water was reaching the brim. It all rushed out of the top and I saw as onlookers down below on dry land began to run as fast as they could away from the tsunami. For some reason, I knew I would be safe, but I worried for everyone else's wellbeing. I continued watching people get pulled down into the water, including people that had tried so hard to run away, but to no avail, as the wave of water would drown them sooner or later. I heard the news, maybe it was on my phone or a little car TV or something. It was saying how bad it was, and I was envisioning that in the future this would be named one of the worst disasters to ever take place. They named some suspects of the flood, but I knew who it was. It was Hailey, and they didn't even name her.