WTPN31 PGTW 182100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL STORM 24W (SARIKA) WARNING NR 026 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 181800Z --- NEAR 20.5N 108.3E MOVEMENT PAST SIX HOURS - 315 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 20.5N 108.3E --- FORECASTS: 12 HRS, VALID AT: 190600Z --- 21.5N 107.4E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 340 DEG/ 04 KTS --- 24 HRS, VALID AT: 191800Z --- 22.3N 107.1E 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: 360 DEG/ 04 KTS --- 36 HRS, VALID AT: 200600Z --- 23.0N 107.1E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 182100Z POSITION NEAR 20.8N 108.1E. TROPICAL STORM 24W (SARIKA), LOCATED APPROXIMATELY 138 NM EAST- SOUTHEAST OF HANOI, VIETNAM, HAS TRACKED NORTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 181800Z IS 15 FEET. NEXT WARNINGS AT 190300Z, 190900Z, 191500Z AND 192100Z. REFER TO SUPER TYPHOON 25W (HAIMA) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//