WWIO20 KNES 151952 A. TROPICAL DISTURBANCE (97B) B. 15/1830Z C. 19.9N D. 88.0E E. FIVE/MET-7 F. T1.5/1.5/S0.0/24HRS G. IR/EIR/SSMIS H. REMARKS...CONVECTION WRAPS .3 ON LOG10 SPIRAL YIELDING A DT OF 1.5. MET = 2.0 AND PT = 1.5. FINAL-T BASED ON DT. A RECENT SSMIS PASS AT 15/1407Z INDICATES CENTER IS NEAR 19.9N/88.0E.