WTXS31 PGTW 132100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE 17S (FILIPO) WARNING NR 007// RMKS/ 1. TROPICAL CYCLONE 17S (FILIPO) WARNING NR 007 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 131800Z --- NEAR 28.2S 35.6E MOVEMENT PAST SIX HOURS - 145 DEGREES AT 20 KTS POSITION ACCURATE TO WITHIN 015 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY SUBTROPICAL RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 28.2S 35.6E --- FORECASTS: 12 HRS, VALID AT: 140600Z --- 30.9S 39.4E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 130 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 125 DEG/ 28 KTS --- 24 HRS, VALID AT: 141800Z --- 34.0S 44.8E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT --- REMARKS: 132100Z POSITION NEAR 28.9S 36.6E. 13MAR24. TROPICAL CYCLONE 17S (FILIPO), LOCATED APPROXIMATELY 211 NM SOUTHEAST OF MAPUTO, MOZAMBIQUE, HAS TRACKED SOUTHEASTWARD AT 20 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS THE SYSTEM HAS ACCELERATED SOUTHEASTWARD IN THE SOUTH INDIAN OCEAN AS IT APPROACHED THE BAROCLINIC ZONE UNDER THE STRONG JET WINDS. THE RAGGED LOW LEVEL CIRCULATION HAS BECOME FULLY EXPOSED AS THE DEEP CONVECTION IS SHEARED 100+ NM POLEWARD. ANALYSIS INDICATES TC 17S HAS TRANSITIONED INTO A SUBTROPICAL SYSTEM. IT IS EXPECTED TO RAPIDLY UNDERGO EXTRA- TROPICAL SYSTEM AND BY TAU 24 WILL BECOME A GALE-FORCE COLD CORE LOW. 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. MINIMUM CENTRAL PRESSURE AT 131800Z IS 998 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 131800Z IS 16 FEET. REFER TO TROPICAL CYCLONE 18S (EIGHTEEN) WARNINGS (WTXS32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN