WTXS31 PGTW 130300 MSGSUBJ/TROPICAL CYCLONE 18S (ILSA) WARNING NR 018// ID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// RMKS/ 1. TROPICAL CYCLONE 18S (ILSA) WARNING NR 018 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 130000Z --- NEAR 17.7S 119.1E MOVEMENT PAST SIX HOURS - 200 DEGREES AT 06 KTS POSITION ACCURATE TO WITHIN 015 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT REPEAT POSIT: 17.7S 119.1E --- FORECASTS: 12 HRS, VALID AT: 131200Z --- 19.3S 119.6E MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 130 DEG/ 13 KTS --- 24 HRS, VALID AT: 140000Z --- 20.9S 121.8E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT VECTOR TO 36 HR POSIT: 110 DEG/ 20 KTS --- 36 HRS, VALID AT: 141200Z --- 22.2S 125.8E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 48 HR POSIT: 100 DEG/ 28 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 150000Z --- 23.0S 131.7E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 130300Z POSITION NEAR 18.1S 119.2E. 13APR23. TROPICAL CYCLONE 18S (ILSA), LOCATED APPROXIMATELY 394 NM NORTHEAST OF LEARMONTH, AUSTRALIA, HAS TRACKED SOUTH-SOUTHWESTWARD AT 06 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 130000Z IS 48 FEET. NEXT WARNINGS AT 130900Z, 131500Z, 132100Z AND 140300Z.// NNNN