WTPN31 PGTW 011500 MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL STORM 06W (NANGKA) WARNING NR 005 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 011200Z4 --- NEAR 18.0N9 117.5E4 MOVEMENT PAST SIX HOURS - 035 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT REPEAT POSIT: 18.0N9 117.5E4 --- FORECASTS: 12 HRS, VALID AT: 020000Z2 --- 19.0N0 118.4E4 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 050 DEG/ 10 KTS --- 24 HRS, VALID AT: 021200Z5 --- 20.3N5 120.0E3 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 065 DEG/ 11 KTS --- 36 HRS, VALID AT: 030000Z3 --- 21.3N6 122.1E6 MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 065 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 031200Z6 --- 22.3N7 124.5E2 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 025 NM RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 070 DEG/ 13 KTS --- 72 HRS, VALID AT: 041200Z7 --- 24.0N6 129.8E0 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 060 DEG/ 13 KTS --- REMARKS: 011500Z7 POSITION NEAR 18.3N2 117.7E6. TROPICAL STORM (TS) 06W (NANGKA), LOCATED APPROXIMATELY 170 NM WEST OF NORTHERN LUZON, PHILIPPINES, HAS DRIFTED NORTHEASTWARD AT 05 KNOT OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 011130Z6 INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 TO 45 KNOTS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS DEEP CONVECTION IN THE NORTHEAST REGION OF THE SYSTEM. ANIMATED WATER VAPOR SATELLITE IMAGERY AND THE RECENT MICROWAVE DATA ALSO INDICATE DRY AIR ENTRAINMENT CONTINUES FROM THE NORTHWEST OF THE SYSTEM. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 011200Z4 IS 16 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 012100Z4, 020300Z5, 020900Z1 AND 021500Z8.// NNNN