SUBJ: TROPICAL CYCLONE WARNING WTPN32 PGTW 201500 1. TYPHOON 18W (BILIS) WARNING NR 010 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 201200Z5 --- NEAR 17.4N2 130.8E2 MOVEMENT PAST SIX HOURS - 305 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST SEMICIRCLE 050 NM ELSEWHERE RADIUS OF 035 KT WINDS - 145 NM NORTHEAST SEMICIRCLE 125 NM ELSEWHERE REPEAT POSIT: 17.4N2 130.8E2 --- FORECASTS: 12 HRS, VALID AT: 210000Z3 --- 18.6N5 128.8E9 MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT RADIUS OF 100 KT WINDS - 015 NM RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE 060 NM ELSEWHERE RADIUS OF 035 KT WINDS - 155 NM NORTHEAST SEMICIRCLE 135 NM ELSEWHERE VECTOR TO 24 HR POSIT: 305 DEG/ 11 KTS --- 24 HRS, VALID AT: 211200Z6 --- 19.8N8 126.8E7 MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT RADIUS OF 100 KT WINDS - 025 NM RADIUS OF 050 KT WINDS - 085 NM NORTHEAST SEMICIRCLE 070 NM ELSEWHERE RADIUS OF 035 KT WINDS - 170 NM NORTHEAST SEMICIRCLE 150 NM ELSEWHERE VECTOR TO 36 HR POSIT: 305 DEG/ 16 KTS --- 36 HRS, VALID AT: 220000Z4 --- 21.6N9 124.0E7 MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT RADIUS OF 100 KT WINDS - 030 NM RADIUS OF 050 KT WINDS - 095 NM NORTHEAST SEMICIRCLE 080 NM ELSEWHERE RADIUS OF 035 KT WINDS - 180 NM NORTHEAST SEMICIRCLE 160 NM ELSEWHERE VECTOR TO 48 HR POSIT: 305 DEG/ 16 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 221200Z7 --- 23.4N9 121.2E6 MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT RADIUS OF 100 KT WINDS - 035 NM OVER WATER RADIUS OF 050 KT WINDS - 085 NM NORTHEAST SEMICIRCLE OVER WATER 070 NM ELSEWHERE OVER WATER RADIUS OF 035 KT WINDS - 165 NM NORTHEAST SEMICIRCLE OVER WATER 145 NM ELSEWHERE OVER WATER VECTOR TO 72 HR POSIT: 310 DEG/ 12 KTS --- 72 HRS, VALID AT: 231200Z8 --- 26.2N0 117.1E0 MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT --- REMARKS: 201500Z8 POSITION NEAR 17.7N5 130.3E7. TYPHOON (TY) 18W (BILIS), LOCATED APPROXIMATELY 480 NM EAST OF LUZON, PHILIPPINES, HAS TRACKED NORTHWESTWARD AT 10 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 200530Z0 INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 90 TO 102 KNOTS. ANIMATED INFRARED SATELLITE IMAGERY INDICATES THAT TY 18W HAS CONTINUED TO INTENSIFY RAPIDLY AND NOW HAS A 30-NM IRREGULAR EYE. A 201100Z4 TROPICAL RAINFALL MEASURING MISSION PARTIAL PASS DEPICTS A BANDING FEATURE WRAPPING INTO THE NORTHWEST QUADRANT OF THE SYSTEM. ANIMATED WATER VAPOR IMAGERY DEPICTS IMPROVING OUTFLOW ALOFT IN ALL QUADRANTS. THE UW-CIMSS ANALYSIS AND THE 200 MB ANALYSIS INDICATE THAT TY 18W (BILIS) IS WITHIN A FAVORABLE ENVIRONMENT. TY 18W (BILIS) IS FORECAST TO TRACK NORTHWESTWARD THROUGH THE FORECAST PERIOD UNDER THE STEERING INFLUENCE OF THE MID-LEVEL RIDGE TO THE NORTHEAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 201200Z5 IS 24 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 202100Z5 (DTG 201952Z9), 210300Z6 (DTG 210152Z1), 210900Z2 (DTG 210752Z7) AND 211500Z9 (DTG 211352Z4). REFER TO TROPICAL DEPRESSION 19W (NONAME) WARNINGS (WTPN31 PGTW) FOR SIX- HOURLY UPDATES.// BT #XXXX NNNN