WATCH: Turnpike Troubadours Perform 'A Tornado Warning' On 'Austin City Limits' Austin, TX, United States / KOKE FM localnews@socastdigital.com Feb 20, 2018 | 8:46 AM The Turnpike Troubadours brought their own brand of roots music to the ACL stage on an episode of Austin City Limits that recently aired on PBS. Watch the performance of their song “A Tornado Warning” in the video clip above.