I just have to chime in on this case because it is driving me bonkers. I lived overlooking the Tennessee River for 8 years. That is a very large, wide river with strong currents, logs, debris, giant catfish - you name it. I knew someone who disappeared near the river in winter, February in fact, and his body surfaced about two weeks later - not downstream or far away, but near the dock where he obviously fell in.
But in this case the divers haven't found a body or any clothing near the riverside or anywhere else.
If it were raining now and a flood happening, I can see a body washing over the weir and maybe out to sea. But it's not raining or flooding. Someone earlier mentioned fly fishing in that river near the bench and the water was chest deep - but that was in summer and the river was higher.
It just seems absurd to say she drowned with no footprints or skid marks showing she fell in. The dog wasn't wet. The phone was there with her meeting still going on. There is a 10 minute window. I'm just as baffled as everyone else.