WTPN31 PGTW 171500 1. TYPHOON 12W (FENGSHEN) WARNING NR 014 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 171200Z1 --- NEAR 14.7N2 166.4E7 MOVEMENT PAST SIX HOURS - 275 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT RADIUS OF 100 KT WINDS - 015 NM RADIUS OF 050 KT WINDS - 035 NM RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT REPEAT POSIT: 14.7N2 166.4E7 --- FORECASTS: 12 HRS, VALID AT: 180000Z9 --- 15.1N7 164.7E8 MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT RADIUS OF 100 KT WINDS - 015 NM RADIUS OF 050 KT WINDS - 035 NM RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 290 DEG/ 09 KTS --- 24 HRS, VALID AT: 181200Z2 --- 15.7N3 162.9E8 MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT RADIUS OF 100 KT WINDS - 015 NM RADIUS OF 050 KT WINDS - 040 NM RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 290 DEG/ 09 KTS --- 36 HRS, VALID AT: 190000Z0 --- 16.3N0 161.1E9 MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT RADIUS OF 100 KT WINDS - 020 NM RADIUS OF 050 KT WINDS - 040 NM RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 290 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191200Z3 --- 17.0N8 159.3E8 MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT RADIUS OF 100 KT WINDS - 020 NM RADIUS OF 050 KT WINDS - 050 NM RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 295 DEG/ 09 KTS --- 72 HRS, VALID AT: 201200Z5 --- 18.6N5 155.8E9 MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT RADIUS OF 100 KT WINDS - 025 NM RADIUS OF 050 KT WINDS - 065 NM RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT --- REMARKS: 171500Z4 POSITION NEAR 14.8N3 166.0E3. TYPHOON (TY) 12W (FENGSHEN), LOCATED APPROXIMATELY 270 NM SOUTH OF WAKE ISLAND, HAS TRACKED WESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. THE WARNING POSITION IS BASED ON 171130Z3 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 127 KNOTS. ANALYSIS OF ENHANCED INFRARED SATELLITE IMAGERY AND RECENT MICROWAVE PASSES (170325Z8 TRMM AND 170925Z4 SSM/I) INDICATE THAT THE SYSTEM WENT THROUGH AN EYEWALL REPLACEMENT WITHIN THE LAST 9 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171200Z1 IS 30 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 172100Z1, 180300Z2, 180900Z8 AND 181500Z5.// NNNN