WTPS52 PGTW 192100 WARNING ATCG MIL 18P SWP 150319195441 2015031918 18P NATHAN 019 01 270 12 SATL 015 T000 147S 1450E 090 R064 025 NE QD 030 SE QD 025 SW QD 025 NW QD R050 045 NE QD 050 SE QD 040 SW QD 040 NW QD R034 070 NE QD 080 SE QD 055 SW QD 065 NW QD T012 144S 1432E 065 T024 139S 1414E 045 R034 040 NE QD 040 SE QD 055 SW QD 050 NW QD T036 132S 1392E 060 R050 035 NE QD 045 SE QD 045 SW QD 035 NW QD R034 060 NE QD 070 SE QD 070 SW QD 060 NW QD T048 125S 1372E 070 R064 020 NE QD 020 SE QD 020 SW QD 020 NW QD R050 040 NE QD 050 SE QD 050 SW QD 040 NW QD R034 070 NE QD 080 SE QD 080 SW QD 070 NW QD T072 115S 1347E 055 R050 015 NE QD 015 SE QD 015 SW QD 015 NW QD R034 055 NE QD 060 SE QD 060 SW QD 055 NW QD T096 114S 1326E 045 T120 117S 1305E 040 AMP 096HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND 120HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND SUBJ: TROPICAL CYCLONE 18P (NATHAN) WARNING NR 019 1. TROPICAL CYCLONE 18P (NATHAN) WARNING NR 019 01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 191800Z --- NEAR 14.7S 145.0E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 015 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT REPEAT POSIT: 14.7S 145.0E --- FORECASTS: 12 HRS, VALID AT: 200600Z --- 14.4S 143.2E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 285 DEG/ 09 KTS --- 24 HRS, VALID AT: 201800Z --- 13.9S 141.4E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 290 DEG/ 11 KTS --- 36 HRS, VALID AT: 210600Z --- 13.2S 139.2E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 290 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 211800Z --- 12.5S 137.2E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 290 DEG/ 07 KTS --- 72 HRS, VALID AT: 221800Z --- 11.5S 134.7E 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 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 275 DEG/ 05 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 231800Z --- 11.4S 132.6E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 120 HR POSIT: 260 DEG/ 05 KTS --- 120 HRS, VALID AT: 241800Z --- 11.7S 130.5E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 192100Z POSITION NEAR 14.6S 144.5E. TROPICAL CYCLONE 18P (NATHAN), LOCATED APPROXIMATELY 140 NM NORTH-NORTHWEST OF CAIRNS, AUSTRALIA, HAS TRACKED WESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 191800Z IS 25 FEET. NEXT WARNINGS AT 200900Z AND 202100Z.// 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 NNNN