2015-05-16: Elmer, OK storm Published on 25 May 2015 in Chase log for May 2015, including the 05-16 Elmer / Tipton, OK tornadoFull resolution (1056 × 428) ← Previous Next → The Elmer-Tipton storm at about 5:42 p.m., after the tornado warning was issued, but before we could see the tornado. The Elmer-Tipton storm at about 5:42 p.m., after the tornado warning was issued, but before we could see the tornado.