WTPN31 PGTW 210300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 04W (FOUR) WARNING NR 006// RMKS/ 1. TROPICAL STORM 04W (FOUR) WARNING NR 006 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 210000Z --- NEAR 16.0N 111.3E MOVEMENT PAST SIX HOURS - 255 DEGREES AT 04 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 - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT REPEAT POSIT: 16.0N 111.3E --- FORECASTS: 12 HRS, VALID AT: 211200Z --- 17.0N 110.9E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 325 DEG/ 09 KTS --- 24 HRS, VALID AT: 220000Z --- 18.5N 109.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 320 DEG/ 08 KTS --- 36 HRS, VALID AT: 221200Z --- 19.7N 108.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 320 DEG/ 05 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 230000Z --- 20.5N 108.1E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 72 HR POSIT: 305 DEG/ 03 KTS --- 72 HRS, VALID AT: 240000Z --- 21.1N 107.2E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 210300Z POSITION NEAR 16.3N 111.2E. 21JUL24. TROPICAL STORM 04W (FOUR), LOCATED APPROXIMATELY 429 NM SOUTHEAST OF HANOI, VIETNAM, HAS TRACKED WEST-SOUTHWESTWARD AT 04 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 210000Z IS 998 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 210000Z IS 15 FEET. NEXT WARNINGS AT 210900Z, 211500Z, 212100Z AND 220300Z. REFER TO TROPICAL STORM 05W (GAEMI) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES. // NNNN