There was area of clouds in central Iowa moving south this morning. The eastern edge of the clouds had a very sharp edge to them. At one point this morning the edge was over Black Hawk County. The image below shows the satellite from Friday morning and where the clouds were. The time lapse at the top of this story is from our Cedar Falls camera from 7 AM to 10 AM and it shows the moving of the clouds from north to south.
The two photos below were taken in Black Hawk County looking west at the sharp edge of clouds. From the photos, it doesn’t look the clouds were very thick.