WTPS52 PGTW 102100 WARNING ATCG MIL 18P SWP 150310213253 2015031018 18P NATHAN 001 02 250 06 SATL 020 T000 136S 1475E 045 R034 055 NE QD 050 SE QD 050 SW QD 055 NW QD T012 139S 1466E 055 R050 020 NE QD 020 SE QD 020 SW QD 020 NW QD R034 060 NE QD 055 SE QD 055 SW QD 060 NW QD T024 139S 1460E 065 R050 025 NE QD 025 SE QD 025 SW QD 025 NW QD R034 065 NE QD 060 SE QD 065 SW QD 065 NW QD T036 137S 1458E 080 R064 015 NE QD 015 SE QD 015 SW QD 015 NW QD R050 035 NE QD 030 SE QD 030 SW QD 035 NW QD R034 075 NE QD 065 SE QD 065 SW QD 075 NW QD T048 134S 1461E 090 R064 025 NE QD 025 SE QD 025 SW QD 025 NW QD R050 045 NE QD 040 SE QD 040 SW QD 045 NW QD R034 085 NE QD 075 SE QD 075 SW QD 085 NW QD T072 133S 1474E 100 R064 035 NE QD 035 SE QD 035 SW QD 035 NW QD R050 060 NE QD 055 SE QD 055 SW QD 060 NW QD R034 095 NE QD 085 SE QD 085 SW QD 095 NW QD T096 136S 1504E 095 T120 143S 1539E 080 AMP SUBJ: TROPICAL CYCLONE 18P (NATHAN) WARNING NR 001 1. TROPICAL CYCLONE 18P (NATHAN) WARNING NR 001 02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 101800Z --- NEAR 13.6S 147.5E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 06 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT REPEAT POSIT: 13.6S 147.5E --- FORECASTS: 12 HRS, VALID AT: 110600Z --- 13.9S 146.6E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 270 DEG/ 03 KTS --- 24 HRS, VALID AT: 111800Z --- 13.9S 146.0E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 315 DEG/ 01 KTS --- 36 HRS, VALID AT: 120600Z --- 13.7S 145.8E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 045 DEG/ 02 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 121800Z --- 13.4S 146.1E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 085 DEG/ 03 KTS --- 72 HRS, VALID AT: 131800Z --- 13.3S 147.4E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 095 DEG/ 07 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 141800Z --- 13.6S 150.4E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 120 HR POSIT: 100 DEG/ 09 KTS --- 120 HRS, VALID AT: 151800Z --- 14.3S 153.9E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY --- REMARKS: 102100Z POSITION NEAR 13.7S 147.3E. TROPICAL CYCLONE 18P (NATHAN), LOCATED APPROXIMATELY 221 NM NORTH-NORTHEAST OF CAIRNS, AUSTRALIA, HAS TRACKED WEST- SOUTHWESTWARD AT 06 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 101800Z IS 10 FEET. NEXT WARNINGS AT 110900Z AND 112100Z. FOR SIX-HOURLY UPDATES.// 1815030918 123S1505E 25 1815031000 128S1496E 30 1815031006 132S1488E 35 1815031012 134S1481E 40 1815031018 136S1475E 45 NNNN