WTPN51 PGTW 302100 WARNING ATCG MIL 18W NWP 120930185228 2012093018 18W JELAWAT 042 02 030 39 SATL RADR 040 T000 386N 1409E 040 T012 440N 1493E 035 R034 055 NE QD 045 SE QD 040 SW QD 035 NW QD T024 480N 1606E 030 AMP 000HR BECOMING EXTRATROPICAL 012HR EXTRATROPICAL 024HR EXTRATROPICAL SUBJ: TROPICAL STORM 18W (JELAWAT) WARNING NR 042 1. TROPICAL STORM 18W (JELAWAT) WARNING NR 042 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 301800Z --- NEAR 38.6N 140.9E MOVEMENT PAST SIX HOURS - 030 DEGREES AT 39 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL REPEAT POSIT: 38.6N 140.9E --- FORECASTS: 12 HRS, VALID AT: 010600Z --- 44.0N 149.3E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 060 DEG/ 44 KTS --- 24 HRS, VALID AT: 011800Z --- 48.0N 160.6E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL --- REMARKS: 302100Z POSITION NEAR 40.0N 143.0E. TROPICAL STORM 18W (JELAWAT), LOCATED, APPROXIMATELY 105 NM SOUTH OF MISAWA, JAPAN, HAS ACCELERATED NORTH-NORTHEASTWARD AT 39 KNOTS OVER THE PAST SIX HOURS. THE INITIAL POSITION IS BASED ON ANIMATED RADAR REFLECTIVITY IMAGERY FROM JAPAN METEOROLOGICAL AGENCY WITH HIGH CONFIDENCE. THE INITIAL INTENSITY IS EXTRAPOLATED FROM NEARBY SURFACE OBSERVATIONS. TS 18W IS NOW EMBEDDED IN THE BAROCLINIC ZONE AND ALMOST VOID OF CONVECTION AS THE LOW LEVEL CIRCULATION CENTER HAS UNRAVELED AND BECOME RAGGED. THE SYSTEM WILL BECOME A COLD CORE LOW AFTER IT EXITS HONSHU INTO THE COLD SEA OF JAPAN OVER THE NEXT FEW HOURS. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. // 1812091818 144N1414E 15 1812091900 144N1402E 15 1812091906 144N1389E 15 1812091912 144N1376E 20 1812091918 142N1361E 20 1812092000 141N1350E 20 1812092006 138N1337E 20 1812092012 135N1324E 25 1812092018 132N1317E 35 1812092100 128N1311E 35 1812092106 125N1306E 45 1812092112 122N1303E 45 1812092118 119N1302E 50 1812092121 117N1303E 50 1812092200 119N1304E 50 1812092206 118N1301E 55 1812092206 118N1301E 55 1812092212 118N1298E 55 1812092212 118N1298E 55 1812092218 118N1293E 65 1812092218 118N1293E 65 1812092300 119N1289E 80 1812092300 119N1289E 80 1812092300 119N1289E 80 1812092303 121N1288E 105 1812092303 121N1288E 105 1812092303 121N1288E 105 1812092306 123N1290E 115 1812092306 123N1290E 115 1812092306 123N1290E 115 1812092309 123N1287E 135 1812092309 123N1287E 135 1812092309 123N1287E 135 1812092312 126N1288E 130 1812092312 126N1288E 130 1812092312 126N1288E 130 1812092318 131N1286E 130 1812092318 131N1286E 130 1812092318 131N1286E 130 1812092400 137N1285E 130 1812092400 137N1285E 130 1812092400 137N1285E 130 1812092406 142N1282E 130 1812092406 142N1282E 130 1812092406 142N1282E 130 1812092412 147N1280E 130 1812092412 147N1280E 130 1812092412 147N1280E 130 1812092418 153N1278E 140 1812092418 153N1278E 140 1812092418 153N1278E 140 1812092500 157N1278E 140 1812092500 157N1278E 140 1812092500 157N1278E 140 1812092506 164N1275E 140 1812092506 164N1275E 140 1812092506 164N1275E 140 1812092512 168N1272E 140 1812092512 168N1272E 140 1812092512 168N1272E 140 1812092518 171N1269E 140 1812092518 171N1269E 140 1812092518 171N1269E 140 1812092600 173N1266E 135 1812092600 173N1266E 135 1812092600 173N1266E 135 1812092606 180N1261E 135 1812092606 180N1261E 135 1812092606 180N1261E 135 1812092612 184N1258E 130 1812092612 184N1258E 130 1812092612 184N1258E 130 1812092618 191N1254E 130 1812092618 191N1254E 130 1812092618 191N1254E 130 1812092700 195N1248E 130 1812092700 195N1248E 130 1812092700 195N1248E 130 1812092706 202N1245E 135 1812092706 202N1245E 135 1812092706 202N1245E 135 1812092712 210N1240E 135 1812092712 210N1240E 135 1812092712 210N1240E 135 1812092718 217N1239E 130 1812092718 217N1239E 130 1812092718 217N1239E 130 1812092800 224N1241E 125 1812092800 224N1241E 125 1812092800 224N1241E 125 1812092806 234N1245E 115 1812092806 234N1245E 115 1812092806 234N1245E 115 1812092812 242N1251E 110 1812092812 242N1251E 110 1812092812 242N1251E 110 1812092818 251N1260E 105 1812092818 251N1260E 105 1812092818 251N1260E 105 1812092900 261N1273E 100 1812092900 261N1273E 100 1812092900 261N1273E 100 1812092906 270N1285E 90 1812092906 270N1285E 90 1812092906 270N1285E 90 1812092912 280N1302E 85 1812092912 280N1302E 85 1812092912 280N1302E 85 1812092918 296N1325E 75 1812092918 296N1325E 75 1812092918 296N1325E 75 1812093000 316N1343E 65 1812093000 316N1343E 65 1812093006 330N1358E 60 1812093006 330N1358E 60 1812093012 353N1382E 55 1812093012 353N1382E 55 1812093018 386N1409E 40 NNNN