WTXS31 PGTW 232100 MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 28S (ROSIE) WARNING NR 005 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 231800Z --- NEAR 12.8S 106.9E MOVEMENT PAST SIX HOURS - 170 DEGREES AT 06 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 12.8S 106.9E --- FORECASTS: 12 HRS, VALID AT: 240600Z --- 14.4S 106.9E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 185 DEG/ 10 KTS --- 24 HRS, VALID AT: 241800Z --- 16.3S 106.7E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 232100Z POSITION NEAR 13.2S 106.9E. TROPICAL CYCLONE (TC) 28S (ROSIE), LOCATED APPROXIMATELY 700 NM NORTHWEST OF LEARMONTH, AUSTRALIA, HAS TRACKED SOUTHWARD AT 06 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY AND A 231413Z AMSU IMAGE INDICATE THAT MUCH OF THE DEEP CONVECTION IS BEING SHEARED TO THE SOUTHEAST OF THE LOW LEVEL CIRCULATION CENTER. THE CURRENT INTENSITY IS BASED ON DVORAK INTENSITY ESTIMATES RANGING FROM 35 TO 45 KNOTS AND A 231413 ASCAT IMAGE. TC 28S WILL CONTINUE TO TRACK SOUTHWARD ALONG THE WESTERN PERIPHERY OF A LOW- TO MID-LEVEL SUBTROPICAL RIDGE TO THE EAST OF THE SYSTEM. AS IT TRACKS SOUTHWARD, THE STORM WILL WEAKEN DUE TO SLIGHTLY LOWER SEA SURFACE TEMPERATURES AND MODERATE TO STRONG VERTICAL WIND SHEAR. THE STORM WILL DISSIPATE AS A SIGNIFICANT TROPICAL CYCLONE BY TAU 24. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 231800Z IS 10 FEET. NEXT WARNING AT 240900Z. REFER TO TROPICAL CYCLONE 29S (DURGA) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.//