WTPN33 PGTW 140300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 18W (NANGKA) WARNING NR 010// RMKS/ 1. TROPICAL STORM 18W (NANGKA) WARNING NR 010 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 140000Z --- NEAR 20.0N 106.8E MOVEMENT PAST SIX HOURS - 275 DEGREES AT 20 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND RADAR PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT REPEAT POSIT: 20.0N 106.8E --- FORECASTS: 12 HRS, VALID AT: 141200Z --- 20.0N 105.0E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 010 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 275 DEG/ 07 KTS --- 24 HRS, VALID AT: 150000Z --- 20.1N 103.5E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 265 DEG/ 06 KTS --- 36 HRS, VALID AT: 151200Z --- 20.0N 102.3E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 140300Z POSITION NEAR 20.0N 106.3E. 14OCT20. TROPICAL STORM 18W (NANGKA), LOCATED APPROXIMATELY 78 NM SOUTHEAST OF HANOI, VIETNAM, HAS TRACKED WESTWARD AT 20 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 140000Z IS 15 FEET. NEXT WARNINGS AT 140900Z, 141500Z, 142100Z AND 150300Z.// NNNN