WTXS31 PGTW 200900 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 06S (BERGUITTA) WARNING NR 031 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 200600Z --- NEAR 29.5S 49.6E MOVEMENT PAST SIX HOURS - 205 DEGREES AT 17 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 230 NM NORTHEAST QUADRANT 240 NM SOUTHEAST QUADRANT 220 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT REPEAT POSIT: 29.5S 49.6E --- FORECASTS: 12 HRS, VALID AT: 201800Z --- 32.1S 49.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 235 NM NORTHEAST QUADRANT 335 NM SOUTHEAST QUADRANT 275 NM SOUTHWEST QUADRANT 185 NM NORTHWEST QUADRANT --- REMARKS: 200900Z POSITION NEAR 30.1S 49.6E. TROPICAL CYCLONE 06S (BERGUITTA), LOCATED APPROXIMATELY 622 NM SOUTH-SOUTHWEST OF ST DENIS, HAS TRACKED SOUTH-SOUTHWESTWARD AT 17 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A RAPIDLY DETERIORATING SYSTEM WITH A FULLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) BECOMING SLIGHTLY ELONGATED OVER THE LAST SIX HOURS. THERE IS HIGH CONFIDENCE IN THE INITIAL POSITION WHICH IS BASED ON THE EXPOSED LLCC. THE INITIAL INTENSITY IS ASSESSED AT 45 KNOTS AND IS BASED ON A BULLSEYE 200527Z METOP-B ASCAT IMAGE SHOWING THE MAXIMUM WINDS EXPANDING OUT TO APPROXIMATELY 80-100NM FROM THE LLCC WITH A SOLID REGION OF 40 TO 45 KNOTS ON THE EASTERN SIDE. VERTICAL WIND SHEAR IS INCREASING RAPIDLY AND IS EXPECTED TO CONTINUE AS A SHORT WAVE TROUGH TO THE WEST INTERACTS WITH TC 06S. TC 06S HAS ALSO MOVED INTO AN AREA OF COLD (24 CELSIUS) WATER, AND IS FORECAST TO CONTINUE POLEWARD, RAPIDLY TRANSITIONING INTO AN EXTRATROPICAL SYSTEM WITHIN THE NEXT 12 HOURS. 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 200600Z IS 30 FEET.//