WTPN52 PGTW 171500 WARNING ATCG MIL 19W NWP 210917132150 2021091712 19W CHANTHU 046 01 080 20 SATL RADR SYNP 040 T000 338N 1315E 040 R034 075 NE QD 080 SE QD 055 SW QD 095 NW QD T012 343N 1357E 035 R034 080 NE QD 100 SE QD 040 SW QD 040 NW QD T024 346N 1383E 030 T036 346N 1402E 030 T048 341N 1417E 025 AMP 012HR BECOMING EXTRATROPICAL 024HR BECOMING EXTRATROPICAL 036HR EXTRATROPICAL 048HR EXTRATROPICAL SUBJ: TROPICAL STORM 19W (CHANTHU) WARNING NR 046 1. TROPICAL STORM 19W (CHANTHU) WARNING NR 046 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 171200Z --- NEAR 33.8N 131.5E MOVEMENT PAST SIX HOURS - 080 DEGREES AT 20 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE, RADAR AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT REPEAT POSIT: 33.8N 131.5E --- FORECASTS: 12 HRS, VALID AT: 180000Z --- 34.3N 135.7E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 080 DEG/ 11 KTS --- 24 HRS, VALID AT: 181200Z --- 34.6N 138.3E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL VECTOR TO 36 HR POSIT: 090 DEG/ 08 KTS --- 36 HRS, VALID AT: 190000Z --- 34.6N 140.2E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL VECTOR TO 48 HR POSIT: 110 DEG/ 07 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191200Z --- 34.1N 141.7E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 171500Z POSITION NEAR 33.9N 132.5E. 17SEP21. TROPICAL STORM 19W (CHANTHU), LOCATED APPROXIMATELY 42 NM SOUTHWEST OF IWAKUNI, JAPAN, HAS TRACKED EASTWARD AT 20 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171200Z IS 16 FEET. NEXT WARNINGS AT 172100Z, 180300Z, 180900Z AND 181500Z. // 1921090506 123N1397E 15 1921090512 126N1395E 20 1921090518 130N1389E 20 1921090600 135N1385E 20 1921090606 141N1382E 25 1921090612 148N1379E 35 1921090618 152N1373E 45 1921090700 156N1366E 50 1921090700 156N1366E 50 1921090706 161N1357E 70 1921090706 161N1357E 70 1921090706 161N1357E 70 1921090712 163N1346E 95 1921090712 163N1346E 95 1921090712 163N1346E 95 1921090718 163N1335E 125 1921090718 163N1335E 125 1921090718 163N1335E 125 1921090800 160N1323E 130 1921090800 160N1323E 130 1921090800 160N1323E 130 1921090806 156N1313E 140 1921090806 156N1313E 140 1921090806 156N1313E 140 1921090812 155N1303E 135 1921090812 155N1303E 135 1921090812 155N1303E 135 1921090818 153N1291E 135 1921090818 153N1291E 135 1921090818 153N1291E 135 1921090900 155N1281E 140 1921090900 155N1281E 140 1921090900 155N1281E 140 1921090906 157N1272E 130 1921090906 157N1272E 130 1921090906 157N1272E 130 1921090912 161N1260E 120 1921090912 161N1260E 120 1921090912 161N1260E 120 1921090918 166N1250E 120 1921090918 166N1250E 120 1921090918 166N1250E 120 1921091000 171N1241E 130 1921091000 171N1241E 130 1921091000 171N1241E 130 1921091006 179N1235E 145 1921091006 179N1235E 145 1921091006 179N1235E 145 1921091012 187N1228E 150 1921091012 187N1228E 150 1921091012 187N1228E 150 1921091018 195N1223E 155 1921091018 195N1223E 155 1921091018 195N1223E 155 1921091100 204N1219E 145 1921091100 204N1219E 145 1921091100 204N1219E 145 1921091106 211N1216E 135 1921091106 211N1216E 135 1921091106 211N1216E 135 1921091112 218N1218E 120 1921091112 218N1218E 120 1921091112 218N1218E 120 1921091118 228N1220E 115 1921091118 228N1220E 115 1921091118 228N1220E 115 1921091200 238N1223E 110 1921091200 238N1223E 110 1921091200 238N1223E 110 1921091206 252N1223E 105 1921091206 252N1223E 105 1921091206 252N1223E 105 1921091212 263N1227E 95 1921091212 263N1227E 95 1921091212 263N1227E 95 1921091218 275N1232E 90 1921091218 275N1232E 90 1921091218 275N1232E 90 1921091300 290N1236E 85 1921091300 290N1236E 85 1921091300 290N1236E 85 1921091306 307N1234E 75 1921091306 307N1234E 75 1921091306 307N1234E 75 1921091312 310N1234E 65 1921091312 310N1234E 65 1921091312 310N1234E 65 1921091318 311N1236E 55 1921091318 311N1236E 55 1921091400 313N1238E 50 1921091400 313N1238E 50 1921091406 307N1243E 45 1921091412 305N1249E 40 1921091418 303N1253E 35 1921091500 303N1257E 35 1921091506 301N1257E 45 1921091512 301N1255E 45 1921091518 302N1252E 50 1921091518 302N1252E 50 1921091600 304N1251E 55 1921091600 304N1251E 55 1921091606 308N1254E 55 1921091606 308N1254E 55 1921091612 315N1259E 50 1921091612 315N1259E 50 1921091618 322N1265E 45 1921091700 329N1275E 45 1921091706 334N1292E 40 1921091712 338N1315E 40 NNNN