TXPS23 KNES 041223 TCSWSP A. 18P (DONNA) B. 04/1130Z C. 12.5S D. 167.6E E. THREE/HIMAWARI-8 F. T4.5/4.5/D1.0/24HRS G. IR/EIR/SSMIS H. REMARKS...DONNA HAS AN IMPRESSIVE COLD CLOUD SHIELD WITH EXTENSIVE AREA OF VERY COLD CLOUD TOP TEMPS (W OR COLDER). RECENT AMSU MICROWAVE PASS SHOWS DEEP CONVECTION WITH FORMATIVE EYEWALL IN WESTERN SEMICIRCLE BUT OPEN IN EASTERN SEMICIRCLE. CENTER WAS DETERMINED BASED ON EXTRAPOLATION AND VERY MODEST WARM SPOT. CENTER WAS EMBEDED IN W FOR DT=5.0. MET=4.5 BASED ON 24 HOUR DEVELOPING TREND. PT=4.5. FT IS BASED ON MET. I. ADDL POSITIONS 04/0754Z 12.5S 167.9E SSMIS ...RUMINSKI