290900Z POSITION NEAR 21.1S 80.4E. TROPICAL CYCLONE (TC) 08S (DIAMONDRA), LOCATED APPROXIMATELY 936 NM SOUTH-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTH-SOUTHEASTWARD AT 05 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS DEMINISHING DEEP CONVECTION SHEARED SOUTH-SOUTHEASTWARD OF A FULLY-EXPOSED LOW-LEVEL CIRCULATION CENTER. A 290334Z ASCAT PASS REVEALS A 20 TO 25 KNOT CIRCULATION WITH GALE FORCE WINDS EXTENDED ASYMMETRICALLY TO 100 NM FROM THE CENTER AND STRONGER (UP TO 45 KNOTS) OVER THE SOUTHWESTERN QUADRANT. BASED ON THE CURRENT ASSESSMENT, TC 08 IS CLASSIFIED AS A SUBTROPICAL CYCLONE AND ASSUMES THE SUBTROPICAL CYCLONE CHARACTERISTICS. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 290600Z IS 13 FEET. REFER TO TROPICAL CYCLONE 09S (EUNICE) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.