WTPS52 PGTW 202100 WARNING ATCG MIL 18P SWP 150320194222 2015032018 18P NATHAN 021 01 290 08 SATL 040 T000 140S 1415E 040 T012 135S 1397E 055 R050 020 NE QD 020 SE QD 020 SW QD 020 NW QD R034 065 NE QD 065 SE QD 060 SW QD 065 NW QD T024 129S 1380E 070 R064 010 NE QD 010 SE QD 010 SW QD 010 NW QD R050 025 NE QD 025 SE QD 025 SW QD 025 NW QD R034 070 NE QD 070 SE QD 065 SW QD 070 NW QD T036 123S 1367E 060 T048 117S 1354E 055 R050 015 NE QD 015 SE QD 015 SW QD 015 NW QD R034 055 NE QD 045 SE QD 045 SW QD 055 NW QD T072 113S 1337E 045 R034 050 NE QD 040 SE QD 040 SW QD 050 NW QD T096 119S 1318E 035 T120 130S 1299E 025 AMP 096HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 120HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL CYCLONE 18P (NATHAN) WARNING NR 021 1. TROPICAL CYCLONE 18P (NATHAN) WARNING NR 021 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 201800Z --- NEAR 14.0S 141.5E MOVEMENT PAST SIX HOURS - 290 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 14.0S 141.5E --- FORECASTS: 12 HRS, VALID AT: 210600Z --- 13.5S 139.7E 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 - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 290 DEG/ 09 KTS --- 24 HRS, VALID AT: 211800Z --- 12.9S 138.0E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 010 NM NORTHEAST QUADRANT 010 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT 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 - 070 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 295 DEG/ 07 KTS --- 36 HRS, VALID AT: 220600Z --- 12.3S 136.7E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 48 HR POSIT: 295 DEG/ 07 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 221800Z --- 11.7S 135.4E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 285 DEG/ 04 KTS --- 72 HRS, VALID AT: 231800Z --- 11.3S 133.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 250 DEG/ 05 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 241800Z --- 11.9S 131.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 120 HR POSIT: 240 DEG/ 05 KTS --- 120 HRS, VALID AT: 251800Z --- 13.0S 129.9E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 202100Z POSITION NEAR 13.9S 141.0E. TROPICAL CYCLONE 18P (NATHAN), LOCATED APPROXIMATELY 291 NM EAST-SOUTHEAST OF GOVE AIRPORT, AUSTRALIA, HAS TRACKED WEST- NORTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. NEXT WARNINGS AT 210900Z AND 212100Z.// 1815030918 123S1505E 25 1815031000 128S1496E 30 1815031006 132S1488E 35 1815031012 134S1481E 40 1815031018 136S1475E 45 1815031100 138S1468E 45 1815031106 139S1464E 45 1815031112 138S1459E 45 1815031118 138S1456E 55 1815031118 138S1456E 55 1815031200 139S1453E 55 1815031200 139S1453E 55 1815031206 138S1451E 55 1815031206 138S1451E 55 1815031212 137S1450E 55 1815031212 137S1450E 55 1815031218 135S1449E 55 1815031218 135S1449E 55 1815031300 133S1448E 55 1815031300 133S1448E 55 1815031306 131S1449E 55 1815031306 131S1449E 55 1815031312 131S1451E 55 1815031312 131S1451E 55 1815031318 131S1453E 50 1815031318 131S1453E 50 1815031400 131S1456E 45 1815031406 131S1462E 45 1815031412 132S1469E 40 1815031418 132S1477E 40 1815031500 134S1485E 45 1815031506 135S1491E 40 1815031512 136S1495E 45 1815031518 137S1498E 50 1815031600 139S1499E 55 1815031600 139S1499E 55 1815031606 141S1499E 55 1815031606 141S1499E 55 1815031612 143S1499E 55 1815031612 143S1499E 55 1815031618 145S1499E 40 1815031700 146S1498E 45 1815031706 147S1497E 45 1815031712 148S1496E 40 1815031718 148S1495E 45 1815031800 148S1493E 50 1815031806 148S1491E 65 1815031806 148S1491E 65 1815031812 148S1488E 75 1815031812 148S1488E 75 1815031812 148S1488E 75 1815031818 147S1482E 80 1815031818 147S1482E 80 1815031818 147S1482E 80 1815031900 147S1475E 85 1815031900 147S1475E 85 1815031900 147S1475E 85 1815031906 147S1469E 90 1815031906 147S1469E 90 1815031906 147S1469E 90 1815031912 147S1462E 90 1815031912 147S1462E 90 1815031912 147S1462E 90 1815031918 147S1450E 90 1815031918 147S1450E 90 1815031918 147S1450E 90 1815032000 146S1441E 75 1815032000 146S1441E 75 1815032000 146S1441E 75 1815032006 145S1432E 50 1815032006 145S1432E 50 1815032012 143S1423E 45 1815032018 140S1415E 40