WTPN51 PGTW 100700 WARNING ATCG MIL 21W NWP 241010064419 2024101006 21W BARIJAT 015 01 015 23 SATL 020 T000 348N 1509E 035 R034 210 NE QD 175 SE QD 015 SW QD 100 NW QD T012 387N 1529E 035 R034 230 NE QD 160 SE QD 040 SW QD 220 NW QD T024 431N 1543E 045 R034 250 NE QD 180 SE QD 100 SW QD 240 NW QD AMP 000HR BECOMING EXTRATROPICAL 012HR EXTRATROPICAL 024HR EXTRATROPICAL SUBJ: TROPICAL STORM 21W (BARIJAT) WARNING NR 015 1. TROPICAL STORM 21W (BARIJAT) WARNING NR 015 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 100600Z --- NEAR 34.8N 150.9E MOVEMENT PAST SIX HOURS - 015 DEGREES AT 23 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 210 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 34.8N 150.9E --- FORECASTS: 12 HRS, VALID AT: 101800Z --- 38.7N 152.9E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 230 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 220 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 015 DEG/ 23 KTS --- 24 HRS, VALID AT: 110600Z --- 43.1N 154.3E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 240 NM NORTHWEST QUADRANT --- REMARKS: 100900Z POSITION NEAR 35.8N 151.4E. 10OCT24. TROPICAL STORM (TS) 21W (BARIJAT), LOCATED APPROXIMATELY 551 NM EAST OF YOKOSUKA, JAPAN, HAS TRACKED NORTH-NORTHEASTWARD AT 23 KNOTS OVER THE PAST SIX HOURS. THE SYSTEM IS CURRENTLY ASSESSED TO BE UNDERGOING EXTRATROPICAL TRANSITION (ETT) AND WILL COMPLETE TRANSITION WITHIN THE NEXT 12 HOURS. THE CURRENT POSITION WAS ASSESSED WITH HIGH CONFIDENCE BASED ON ANIMATED MULTISPECTRAL IMAGERY DEPICTING DEEP CONVECTION EASTWARD AND POLEWARD OF A PARTIALLY EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC) WITH FRONTOGENESIS TO THE SOUTH AND EAST. SUBSIDENT DRY AIR ENTRAINS INTO THE SYSTEM FROM THE SOUTHWEST. THE CURRENT INTENSITY IS ASSESSED WITH HIGH CONFIDENCE BASED ON EARLIER 100236Z OCEANSAT-3 OSCAT DATA REVEALING A HIGHLY ASYMMETRIC WIND FIELD WITH A BAND OF 30-35KT WINDS LOCATED TO THE NORTHEAST OF THE LLCC. HIGH SHEAR OF 35-40KTS AND STRONG POLEWARD OUTFLOW IS INDUCED BY AN UPPER-LEVEL SHORTWAVE TROUGH LOCATED NORTHWEST OF THE SYSTEM. BAROCLINIC FORCING OVER THE NEXT 24 HOURS WILL CAUSE THE SYSTEM TO INTENSIFY TO 45KTS WHILE TRACKING NORTH-NORTHEASTWARD AND BECOMING FURTHER EMBEDDED WITHIN THE UPPER-LEVEL JET. 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. MINIMUM CENTRAL PRESSURE AT 100600Z IS 993 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 100600Z IS 18 FEET. // 2124100206 84N1567E 15 2124100212 87N1559E 15 2124100218 91N1550E 15 2124100300 95N1542E 15 2124100306 97N1531E 15 2124100312 100N1524E 15 2124100318 107N1513E 15 2124100400 112N1503E 15 2124100406 112N1494E 15 2124100412 112N1488E 20 2124100418 119N1476E 15 2124100500 128N1474E 20 2124100506 136N1472E 20 2124100512 142N1468E 20 2124100518 152N1466E 20 2124100600 167N1457E 20 2124100606 178N1455E 25 2124100612 188N1455E 30 2124100618 199N1457E 30 2124100700 209N1460E 40 2124100706 218N1465E 40 2124100712 231N1471E 35 2124100718 238N1473E 35 2124100800 240N1470E 30 2124100806 239N1469E 30 2124100812 240N1474E 30 2124100818 246N1482E 30 2124100900 259N1490E 30 2124100906 277N1493E 30 2124100912 299N1490E 30 2124100918 315N1492E 30 2124101000 326N1502E 35 2124101006 348N1509E 35 NNNN