Not quite, part of the west boundry of the base is Sooner Road, but that far south it's a bit farther east than sooner. (just barely to about 47th, Sooner remains the boundry) However as someone else has pointed out, there is no S 50th at Sooner, 48th runs just south of the base on the east side of Sooner, but only for a few blocks. The south boundary of the base is pretty "ragged" at that point. You'd be amazed at what strategically important assets are just on the other side of that ragged boundary. But I'm not going to say what they are.
Fires haven't even been near Tinker. They are well to the north. The location of the big fire last night was where I-44 goes south to Lawton off of I-35 north of OKC -- it was just east of there. Sooner Road runs way north of Tinker.