I drove across a big swath of the midwest on vacation last week. I didn't see good corn until I got east and north of Dayton, OH. Pretty much all corn from border to border in Indiana on I-70 was tasseling but there was no ear in most cases and in some cases an ear but no silk to catch the pollen. If it rained 6" tomorrow, the crop all looks to be a complete loss to me.
Last week drove from Fort Worth to Houston. Corn was 3 feet tall and brown.