I traveled today on Hwy 30 today from Des Moines to about 20 miles from Cedar Rapids and then traveled from Waterloo on 63/96/330 back to Des Moines.
It was crazy. If you don't live there, I don't think it is possible to understand how bad it was. There was a stretch from about Tama to where I got off of 30 where about 90% of the farms/acreages had damage that looked like it came from a pretty good tornado. I thought of the times when my family has helped others clean up after tornados. Everyone would come help. Now almost every farm along that route is dealing with the same thing. There's no one to help. I suspect that the rest of the way to Cedar Rapids was similar. On several north/south gravel roads every single power that I could see was still down on the road. The road signs were bent over. The corn was ruined. On the way home, there wasn't as much structural damage on my route, but so many large trees down. It looked like Albion was still without power.
I didn't go into Marshalltown or Cedar Rapids and it sounds like they have as much damage as I saw today.
I have no doubt that this will go down as the biggest natural disaster in this state's history. The amount of property damage that I just managed to catch driving was easily several millions. And the crop damage is equally bad. They might be able to save some of the corn that wasn't completely flattened, but it will be hard.