We have been tracking a cold front moving through Iowa this afternoon and evening. The area with the most unstable air was ahead of the front, along the Iowa/Missouri state line. Here is position of the cold front this evening.
Some of these storms have produced golfball size hail in Iowa and Nebraska. The chart below shows some of the specifics to the storm reports.
The map shows the locations of the hail and wind reports. All of them have been along the Iowa/Missouri state line.