WTPS52 PGTW 251500 WARNING ATCG MIL 17P SWP 180325132235 2018032512 17P IRIS 004 02 200 05 SATL 015 T000 157S 1585E 035 R034 120 NE QD 095 SE QD 075 SW QD 065 NW QD T012 170S 1582E 040 R034 130 NE QD 095 SE QD 030 SW QD 055 NW QD T024 185S 1581E 040 R034 125 NE QD 115 SE QD 055 SW QD 060 NW QD T036 203S 1584E 040 R034 145 NE QD 125 SE QD 120 SW QD 055 NW QD T048 222S 1588E 035 R034 185 NE QD 165 SE QD 190 SW QD 055 NW QD T072 227S 1579E 030 AMP 048HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 072HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE WARNING 1. TROPICAL CYCLONE 17P (IRIS) WARNING NR 004 02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 251200Z --- NEAR 15.7S 158.5E MOVEMENT PAST SIX HOURS - 200 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 015 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 RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT REPEAT POSIT: 15.7S 158.5E --- FORECASTS: 12 HRS, VALID AT: 260000Z --- 17.0S 158.2E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 185 DEG/ 08 KTS --- 24 HRS, VALID AT: 261200Z --- 18.5S 158.1E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 170 DEG/ 09 KTS --- 36 HRS, VALID AT: 270000Z --- 20.3S 158.4E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 170 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 271200Z --- 22.2S 158.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 034 KT WINDS - 185 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 240 DEG/ 02 KTS --- 72 HRS, VALID AT: 281200Z --- 22.7S 157.9E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 251500Z POSITION NEAR 16.0S 158.4E. TROPICAL CYCLONE 17P (IRIS), LOCATED APPROXIMATELY 576 NM WEST OF PORT VILA, VANUATU, HAS TRACKED SOUTH-SOUTHWESTWARD AT 05 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 251200Z IS 14 FEET. NEXT WARNINGS AT 252100Z, 260300Z, 260900Z AND 261500Z. FOR SIX-HOURLY UPDATES. // 1718032112 115S1627E 15 1718032118 117S1631E 20 1718032200 119S1634E 20 1718032206 121S1636E 20 1718032212 123S1637E 25 1718032218 125S1637E 25 1718032300 128S1636E 30 1718032306 131S1633E 30 1718032312 135S1627E 30 1718032318 139S1619E 30 1718032400 140S1605E 30 1718032406 142S1599E 30 1718032412 143S1595E 30 1718032418 144S1592E 35 1718032500 146S1589E 35 1718032506 152S1587E 35 1718032512 157S1585E 35