TXXS27 KNES 271813 TCSSIO A. TROPICAL DISTURBANCE B. 27/1730Z C. 5.5S D. 61.9E E. THREE/MET-10 F. T1.0/1.0/D1.0/24HRS G. IR/EIR/SWIR H. REMARKS...DISTURBANCE IN THE SOUTH INDIAN OCEAN HAD A WELL DEFINED CIRCULATION BUT PREVIOUSLY LACKED CONVECTION. OVER THE LAST 6 HOURS CONVECTION HAS INCREASED OVER THE LOW LEVEL CENTER WARRANTING A RENEWAL OF DVORAK CLASSIFICATIONS. SYSTEM IS CHARACTERIZED BY CIRCULARLY DEFINED CLOUD LINES AND CENTER ESTIMATED TO BE UNDER A LARGE COLD OVERCAST. THIS RESULTS IN A DT OF 2.0 USING THE SHEAR PATTERN. MET AND PT ARE 1.0. FT IS BASED ON MET BECAUSE CONVECTION HAS NOT PERSISTED FOR 12 HOURS. I. ADDL POSITIONS NIL ...TURK