Hail Damage
Hail Know Tool Kit from University of Nebraska
Excellent set of resources that walks you through assessing damage, working with crop insurance and managing the recovering crop.
'Evaluating Hail Damage to Corn' from UNL
http://extensionpublications.unl.edu/assets/pdf/ec126.pdf
'Evaluating Hail Damage to Grain Sorghum' from UNL
http://extensionpublications.unl.edu/assets/pdf/ec129.pdf
'Evaluating Hail Damage to Soybeans' from UNL
http://extensionpublications.unl.edu/assets/pdf/ec128.pdf
K-State Agronomy eUpdate on Hail Damage to Corn: https://eupdate.agronomy.ksu.edu/article_new/assessing-hail-damage-to-corn-343
If you are unsure of the stage of growth of your crops, here are K-State Crop Growth and Development Charts:
For Corn: https://www.bookstore.ksre.ksu.edu/pubs/MF3305.pdf
For Sorghum: https://www.bookstore.ksre.ksu.edu/pubs/MF3234.pdf
For Soybeans: https://www.bookstore.ksre.ksu.edu/pubs/MF3339.pdf