TXPZ21 KNES 241218 TCSENP A. TROPICAL DISTURBANCE (91E) B. 24/1200Z C. 11.4N D. 129.9W E. FIVE/GOES-W F. T1.5/2.0/W0.5/06HRS G. IR/EIR/SWIR/AMSU H. REMARKS...MI PASSES SHOWED THAT 91E HAD BECOME ELONGATED W-E WITH WEAK CURVED BANDS ON THE LEADING EDGE OF EASTERLY WIND SURGES ALONG THE INTERFACE OF THE ITCZ/MONSOON TROF. THE BEST INTERSECTION HAS RECENTLY BEGUN TO DEVELOP BETTER CONVECTION WITH SOME WEAK BANDING FEATURES SEEN...ABOUT .25 ON LOG10 OR USING SHEAR MATRIX WOULD ALSO YIELD DT OF 1.5 BUT NOT MUCH CONFIDENCE IN METHOD AS THE EVOLUTION OF THE BAND/SHEAR PATTERN IS RAPIDLY CHANGING. MET IS STEADY TREND FOR 1.5. PT IS 1.5. FT IS 1.5 BASED ON MET. CI IS 2.0 PER WEAKENING RULES. I. ADDL POSITIONS 24/0612Z 11.6N 129.0W AMSU ...GALLINA