TXIO27 KNES 052109 TCSNIO A. TROPICAL DISTURBANCE (91B) B. 05/2030Z C. 13.6N D. 87.9E E. FIVE/MET-7 F. T1.5/1.5/D1.0/24HRS G. IR/EIR/SWIR H. REMARKS...GREATER THAN NORMAL UNCERTAINTY IN SYSTEM CENTER LOCATION DUE TO LACK OF RECENT MICROWAVE DATA AND SIGNIFICANT AMOUNT OF HIGH CLOUD AND EIR IMAGERY. SYSTEM CHARACTERIZED BY SPIRAL, LOOSELY DEFINED CLOUD LINES WITH A CENTER ESTIMATED TO BE UNDER A LARGE, COLD OVERCAST. THIS RESULTS IN A DT OF 1.5 USING SHEAR PATTERN. MET IS 1.5 AND PT IS 2.0. FT IS BASED ON DT. I. ADDL POSITIONS NIL ...VELASCO