WTPS52 PGTW 262100 WARNING ATCG MIL 17P SWP 180326193727 2018032618 17P IRIS 009 01 170 07 SATL 045 T000 187S 1581E 035 R034 100 NE QD 090 SE QD 030 SW QD 035 NW QD T012 201S 1584E 035 R034 135 NE QD 120 SE QD 050 SW QD 015 NW QD T024 213S 1588E 040 R034 155 NE QD 145 SE QD 090 SW QD 005 NW QD T036 220S 1592E 035 R034 130 NE QD 200 SE QD 145 SW QD 005 NW QD T048 219S 1584E 030 AMP 036HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 048HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE WARNING 1. TROPICAL CYCLONE 17P (IRIS) WARNING NR 009 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 261800Z --- NEAR 18.7S 158.1E MOVEMENT PAST SIX HOURS - 170 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 045 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 - 100 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT REPEAT POSIT: 18.7S 158.1E --- FORECASTS: 12 HRS, VALID AT: 270600Z --- 20.1S 158.4E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 165 DEG/ 06 KTS --- 24 HRS, VALID AT: 271800Z --- 21.3S 158.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 005 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 150 DEG/ 04 KTS --- 36 HRS, VALID AT: 280600Z --- 22.0S 159.2E 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 - 130 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 005 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 280 DEG/ 04 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 281800Z --- 21.9S 158.4E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 262100Z POSITION NEAR 19.0S 158.2E. TROPICAL CYCLONE (TC) 17P (IRIS), LOCATED APPROXIMATELY 494 NM WEST- NORTHWEST OF NOUMEA, NEW CALEDONI, HAS TRACKED SOUTHWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 261800Z IS 14 FEET. NEXT WARNINGS AT 270300Z, 270900Z, 271500Z AND 272100Z.// 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 150S1586E 35 1718032512 155S1585E 35 1718032518 160S1583E 35 1718032600 166S1581E 35 1718032606 173S1580E 35 1718032612 180S1580E 35 1718032618 187S1581E 35