TXPS27 KNES 180641 TCSWSP A. TROPICAL DISTURBANCE (90P) B. 18/0600Z C. 25.2S D. 143.3W E. THREE/GOES-W F. T1.5/2.0/S0.0/24HRS G. IR/EIR/SWIR/AMSU H. REMARKS...SHEAR PATTERN CHARACTERIZED BY TIGHTLY DEFINED CLOUD LINES WITH EXPOSED LLCC GREATER THAN 75 NM FROM A SMALL COLD OVERCAST FOR DT=1.5. MET=1.0. PT=1.0. FT IS BASED ON DT. RAPID POLEWARD ACCELERATION SUGGESTS 90P MAY BEGIN EXTRATROPICAL TRANSITION OVER THE NEXT 24 HRS. I. ADDL POSITIONS 18/0416Z 25.0S 143.6W AMSU ...LEE