000 WUUS48 KWNS 210848 PTSD48 DAY 4-8 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 0348 AM CDT TUE MAY 21 2013 VALID TIME 241200Z - 291200Z SEVERE WEATHER OUTLOOK POINTS DAY 4-8 ... ANY SEVERE ... &&