TXPN21 KNES 180946 SIMWIR A. 15W (CHOI-WAN) B. 18/0830Z C. 24.7N D. 138.9E E. ONE/MTSAT F. T5.5/6.0/W0.5/24HRS G. IR/EIR/VIS H. REMARKS...EYEWALL REPLACEMENT CYCLE CONTINUES AS INNER EYE SHOWS WEAKENING WITH WARMING CLOUD TOP TEMPERATURES AND NARROWING OF EYEWALL WIDTH..ESPECIALLY ON WESTERN EDGE AS CONFIRMED BY RECENT MICROWAVE IMAGERY. VERY BROAD OUTER EYE IS QUITE SYMMETRIC AND UNBROKEN IN MTSAT IR AND MICROWAVE IMAGERY. DT WAS CALCULATED BASED ON INNER EYE FEATURES. DT=5.5 BASED ON OW EYE TEMPERATURE WITH NO EYE ADJUSTMENT BUT 1.5 ADDED FOR BANDING. MET=5.0 AND PT=5.5. FT BASED ON DT. I. ADDL POSITIONS NIL ...RUMINSKI