WTPN51 PGTW 202100 WARNING ATCG MIL 01W NWP 260120190909 2026012018 01W NOKAEN 025 01 120 11 SATL 050 T000 171N 1330E 030 T012 155N 1340E 030 T024 137N 1343E 025 AMP 000HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 012HR DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER 024HR DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER SUBJ: TROPICAL DEPRESSION 01W (NOKAEN) WARNING NR 025 1. TROPICAL DEPRESSION 01W (NOKAEN) WARNING NR 025 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 201800Z --- NEAR 17.1N 133.0E MOVEMENT PAST SIX HOURS - 120 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 050 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 17.1N 133.0E --- FORECASTS: 12 HRS, VALID AT: 210600Z --- 15.5N 134.0E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 170 DEG/ 09 KTS --- 24 HRS, VALID AT: 211800Z --- 13.7N 134.3E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 202100Z POSITION NEAR 16.7N 133.3E. 20JAN26. TROPICAL DEPRESSION 01W (NOKAEN), LOCATED APPROXIMATELY 544 NM NORTH-NORTHWEST OF YAP, HAS TRACKED EAST-SOUTHEASTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY (EIR) DEPICTS A RAPIDLY UNRAVELING LOW LEVEL CIRCULATION CENTER, WITH MULTIPLE SMALL VORTICES DEVELOPING AROUND THE PERIPHERY OF THE HIGHLY ELONGATED LLCC. THE PRIMARY VORTEX CURRENTLY BEING TRACKED AS THE CENTER OF TD 01W IS LOCATED ON THE SOUTHEASTERN PERIPHERY OF THE BROADER ROTATION, BEING FIXED ON BY BOTH PGTW AND RJTD. A 201627Z AMSR2 36GHZ MICROWAVE IMAGE REVEALED AN ELONGATED LOW EMISSIVITY REGION (LER) WITH A LINEAR BAND OF CONVECTION TO THE NORTHEAST WHERE THE TAIL END OF A SHEAR LINE MERGES WITH THE BROADER CIRCULATION. THE REMAINDER OF THE LLCC IS DEVOID OF CONVECTIVE ACTIVITY. OVERNIGHT SCATTEROMETER DATA INDICATED WINDS OF 30-35 KNOTS EMBEDDED WITHIN THE STRONG NORTHEASTERLY FLOW ALONG THE NORTHWESTERN FLANK OF THE SYSTEM, AND LIGHT WINDS ACROSS THE REMAINDER OF THE CIRCULATION. THE INITIAL POSITION AND INTENSITY ARE ASSESSED WITH HIGH CONFIDENCE. THE SYSTEM WILL CONTINUE TO TRACK SOUTHEASTWARD ALONG THE LEADING EDGE OF THE SHEAR LINE OR FRONTAL SYSTEM, AHEAD OF A REINVIGORATED COLD SURGE EVENT, OVER THE NEXT 24 HOURS. DURING THIS TIME, THE LLCC WILL CONTINUE TO UNRAVEL AND BECOME INCREASINGLY LINEAR IN NATURE. WHILE WINDS OF 25-30 KNOTS WILL PERSIST WITHIN THE NORTHEASTERLY SURGE FLOW, THEY WILL BE LINEAR IN NATURE AND NOT DIRECTLY ASSOCIATED WITH THE REMAINS OF TD 01W. 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 201800Z IS 1001 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 201800Z IS 14 FEET. // 0126011312 73N1330E 15 0126011318 75N1327E 20 0126011400 81N1318E 20 0126011406 87N1311E 20 0126011412 90N1305E 30 0126011418 92N1300E 30 0126011500 94N1295E 30 0126011506 99N1290E 30 0126011512 101N1289E 30 0126011518 102N1290E 30 0126011600 112N1287E 30 0126011606 118N1279E 40 0126011612 121N1269E 40 0126011618 128N1256E 45 0126011700 136N1251E 45 0126011706 139N1249E 50 0126011706 139N1249E 50 0126011712 141N1248E 45 0126011718 142N1252E 40 0126011800 144N1253E 35 0126011806 149N1254E 30 0126011812 154N1255E 25 0126011818 160N1257E 30 0126011900 165N1263E 35 0126011906 167N1271E 35 0126011912 172N1277E 35 0126011918 170N1281E 35 0126012000 172N1290E 35 0126012006 179N1303E 35 0126012012 177N1320E 30 0126012018 171N1330E 30 NNNN