The San Diego Thunder next team workout will be on Wednesday, May 4, 2016 from 7:30 pm - 10:00 PM @ SportsPlex USA in Santee, CA. The Address: 9951 Riverwalk Dr, Santee, CA 92071. "The San Diego Thunder is a different organization this year, but the tempo will be a lot faster." Please arrive :30 mins early to fill out paperwork. The SD Thunder continue to have over 60+ competitive athletes was in attendance working hard, and having a great time integrating with one another. The San Diego Thunder provide athletes with a deal of football terminology from experienced coaches who once took part in the NFL.