Nate, welcome to G2G forum.
There is a great chance that the parents of your father Warren Homer were Willis Homer Storms and Audrey Lenora Ling according to the following records:
Willis Homer and Audrey Lenora got marrien in NE on 7 Feb 1943:
Willis Homer and Audrey L. are buried in the same cemetery your father is buried (Plainview Cemetery):
Your father: https://www.findagrave.com/memorial/105280514
Willis Homer: https://www.findagrave.com/memorial/105295184
Audrey L.: https://www.findagrave.com/memorial/179318215
If your father had a brother named Jan, the following newspaper articles may be related to your father and your grandparents:
Beatrice Daily Sun, Beatrice, NE. Apr 10 1967:
"Warren Storms has returned to the Marine Base at Paris Island, N.C., after spending 2 weeks with his parents and brother, Mr. and Mrs. Homer Storms and Jan."
(7th column, aside the ad "Power Lawn Mowers $16.50 And Up" in cols 8th and 9th)
Beatrice Daily Sun, Beatrice, NE. May 18 1967:
"Helen Storms and Jan Storms visited Mr. and Mrs. Homer Storms, Omaha. Mrs. Storms is a patient at the Methodist hospital and Mr. Storms is residing at a nearby motel."
(7th column, 3rd paragraph from the top, amidst the two photos)
I hope this information may help in your search.