WTPN31 PGTW 182100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/ TROPICAL STORM 04W (SINLAKU) WARNING NR 040// RMKS/ 1. TROPICAL STORM 04W (SINLAKU) WARNING NR 040 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 181800Z --- NEAR 25.3N 148.5E MOVEMENT PAST SIX HOURS - 045 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 215 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT REPEAT POSIT: 25.3N 148.5E --- FORECASTS: 12 HRS, VALID AT: 190600Z --- 27.3N 151.4E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 200 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 065 DEG/ 20 KTS --- 24 HRS, VALID AT: 191800Z --- 28.8N 155.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 200 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 170 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 075 DEG/ 23 KTS --- 36 HRS, VALID AT: 200600Z --- 29.7N 160.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 210 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 220 NM SOUTHWEST QUADRANT 170 NM NORTHWEST QUADRANT --- REMARKS: 182100Z POSITION NEAR 25.8N 149.2E. 18APR26. TROPICAL STORM 04W (SINLAKU), LOCATED APPROXIMATELY 392 NM EAST OF IWO TO, HAS TRACKED NORTHEASTWARD AT 14 KNOTS OVER THE PAST SIX HOURS. MINIMUM CENTRAL PRESSURE AT 181800Z IS 983 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 181800Z IS 30 FEET. NEXT WARNINGS AT 190300Z, 190900Z, 191500Z AND 192100Z.// NNNN