TXNT21 KNES 301211 TCSNTL A. 02E (BARBARA) B. 30/1145Z C. 18.1N D. 93.8W E. FIVE/GOES-E F. OVERLAND G. IR/EIR/SWIR/VIS H. REMARKS...VIGOROUS MID-LEVEL CIRCULATION REMAINS OVER LAND. HIGH UNCERTAINTY AS TO EXISTENCE AND LOCATION OF LOW LEVEL CENTER. CONVECTION HAS WARMED DRAMATICALLY OVER THE LAST SEVERAL HOURS. I. ADDL POSITIONS NIL ...MCCARTHY