Models have trended more unstable the last couple of days...dew points already to 60 at  the Red river and moisture will continue to improve with time....cold temps aloft moving in  models now have SBCAPE to 2000 later this evening   here are the latest 12z outlook form SPC....   DAY 1 CONVECTIVE OUTLOOK     NWS STORM PREDICTION CENTER NORMAN OK   0654 AM CST FRI NOV 30 2018      VALID 301300Z - 011200Z      ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORM