TXPS23 KNES 041841 TCSWSP A. 18P (DONNA) B. 04/1800Z C. 12.7S D. 166.6E E. FIVE/HIMAWARI-8 F. T4.5/4.5/D0.5/24HRS G. IR/EIR/SSMIS H. REMARKS...18P HAS SHOWN LITTLE CHANGE IN OVERALL SATELLITE PRESENTATION PAST 6 HOURS AND HAS MAINTAINED A BROAD VERY COLD CLOUD SHIELD. RECENT SSMIS MICROWAVE IMAGE FROM 1650Z SHOWS DEEP CONVECTION HAS ROTATED SOMEWHAT COMPARED TO 6 HOURS PREVIOUS AND IS NOW WEST AND NORTH OF CENTER BUT OPEN IN EAST AND SOUTH QUADS. LOW LEVEL CENTER...WHICH LEANED ON MICROWAVE FIX...IS EMBEDDED IN W FOR DT=5.0. MET=4.0 BASED ON 24 HOUR STEADY TREND. PT=4.5. FT IS BASED ON PT. I. ADDL POSITIONS 04/1650Z 12.8S 166.8E SSMIS ...RUMINSKI