MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL STORM 04W (SINLAKU) WARNING NR 003// RMKS/ 1. TROPICAL STORM 04W (SINLAKU) WARNING NR 003 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 011800Z --- NEAR 18.8N 106.6E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 050 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 RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 18.8N 106.6E --- FORECASTS: 12 HRS, VALID AT: 020600Z --- 19.4N 105.2E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 280 DEG/ 09 KTS --- 24 HRS, VALID AT: 021800Z --- 19.7N 103.4E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 285 DEG/ 09 KTS --- 36 HRS, VALID AT: 030600Z --- 20.1N 101.6E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 012100Z POSITION NEAR 19.0N 106.2E. 01AUG20. TROPICAL STORM 04W (SINLAKU), LOCATED APPROXIMATELY 138 NM SOUTH-SOUTHEAST OF HANOI, VIETNAM, HAS TRACKED WESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 011800Z IS 12 FEET. NEXT WARNINGS AT 020300Z, 020900Z, 021500Z AND 022100Z. REFER TO TROPICAL STORM 03W (HAGUPIT) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES. // NNNN NNNN