WTXS52 PGTW 181500 WARNING ATCG MIL 15S SIO 180318134331 2018031812 15S MARCUS 012 02 250 13 SATL RADR SYNP 045 T000 150S 1253E 045 R034 065 NE QD 075 SE QD 050 SW QD 060 NW QD T012 155S 1232E 050 R050 020 NE QD 040 SE QD 040 SW QD 015 NW QD R034 080 NE QD 085 SE QD 080 SW QD 065 NW QD T024 156S 1210E 060 R050 030 NE QD 060 SE QD 050 SW QD 035 NW QD R034 085 NE QD 115 SE QD 100 SW QD 070 NW QD T036 154S 1185E 070 R064 025 NE QD 040 SE QD 040 SW QD 025 NW QD R050 035 NE QD 065 SE QD 060 SW QD 035 NW QD R034 100 NE QD 130 SE QD 115 SW QD 085 NW QD T048 151S 1158E 090 R064 030 NE QD 045 SE QD 045 SW QD 030 NW QD R050 045 NE QD 075 SE QD 065 SW QD 045 NW QD R034 115 NE QD 145 SE QD 135 SW QD 100 NW QD T072 155S 1103E 120 R064 050 NE QD 055 SE QD 050 SW QD 045 NW QD R050 070 NE QD 100 SE QD 085 SW QD 060 NW QD R034 145 NE QD 175 SE QD 150 SW QD 125 NW QD T096 184S 1066E 125 R064 050 NE QD 060 SE QD 055 SW QD 045 NW QD R050 080 NE QD 095 SE QD 090 SW QD 075 NW QD R034 160 NE QD 175 SE QD 155 SW QD 140 NW QD T120 227S 1058E 115 R064 055 NE QD 070 SE QD 060 SW QD 050 NW QD R050 085 NE QD 105 SE QD 095 SW QD 075 NW QD R034 155 NE QD 160 SE QD 170 SW QD 140 NW QD AMP SUBJ: TROPICAL CYCLONE WARNING 1. TROPICAL CYCLONE 15S (MARCUS) WARNING NR 012 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 181200Z --- NEAR 15.0S 125.3E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT REPEAT POSIT: 15.0S 125.3E --- FORECASTS: 12 HRS, VALID AT: 190000Z --- 15.5S 123.2E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 265 DEG/ 11 KTS --- 24 HRS, VALID AT: 191200Z --- 15.6S 121.0E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 275 DEG/ 12 KTS --- 36 HRS, VALID AT: 200000Z --- 15.4S 118.5E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 130 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 275 DEG/ 13 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 201200Z --- 15.1S 115.8E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 135 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 265 DEG/ 13 KTS --- 72 HRS, VALID AT: 211200Z --- 15.5S 110.3E MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 230 DEG/ 11 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 221200Z --- 18.4S 106.6E MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 190 DEG/ 11 KTS --- 120 HRS, VALID AT: 231200Z --- 22.7S 105.8E MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT --- REMARKS: 181500Z POSITION NEAR 15.1S 124.8E. TROPICAL CYCLONE (TC) 15S (MARCUS), LOCATED APPROXIMATELY 249 NM NORTHEAST OF BROOME, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. NEXT WARNINGS AT 182100Z, 190300Z, 190900Z AND 191500Z. FOR SIX-HOURLY UPDATES.// 1518031318 85S1287E 20 1518031400 88S1289E 20 1518031406 90S1292E 20 1518031412 90S1296E 20 1518031418 90S1300E 20 1518031500 90S1304E 25 1518031506 93S1313E 30 1518031512 96S1319E 30 1518031518 101S1323E 35 1518031600 105S1324E 40 1518031606 108S1322E 40 1518031612 112S1319E 40 1518031618 117S1316E 40 1518031700 124S1311E 45 1518031706 130S1300E 45 1518031712 135S1293E 45 1518031718 139S1286E 50 1518031718 139S1286E 50 1518031800 142S1278E 55 1518031800 142S1278E 55 1518031806 146S1266E 50 1518031806 146S1266E 50 1518031812 150S1253E 45