WTPN32 PGTW 041500 1. TYPHOON 09W (RAMMASUN) WARNING NR 026 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 041200Z7 --- NEAR 29.5N6 124.0E7 MOVEMENT PAST SIX HOURS - 355 DEGREES AT 17 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT OVER WATER 180 NM NORTHWEST QUADRANT OVER WATER REPEAT POSIT: 29.5N6 124.0E7 --- FORECASTS: 12 HRS, VALID AT: 050000Z5 --- 32.0N5 123.5E1 MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT OVER WATER 150 NM NORTHWEST QUADRANT OVER WATER VECTOR TO 24 HR POSIT: 360 DEG/ 10 KTS --- 24 HRS, VALID AT: 051200Z8 --- 34.1N8 123.4E0 MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 020 DEG/ 09 KTS --- 36 HRS, VALID AT: 060000Z6 --- 35.8N6 124.2E9 MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 020 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 061200Z9 --- 37.4N4 125.0E8 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 015 DEG/ 06 KTS --- 72 HRS, VALID AT: 071200Z0 --- 39.7N9 125.7E5 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 041500Z0 POSITION NEAR 30.1N4 123.9E5. TYPHOON (TY) 09W (RAMMASUN), LOCATED APPROXIMATELY 160 NM SOUTHEAST OF SHANGHAI, HAS TRACKED NORTHWARD AT 17 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 041130Z9 INFRARED SATELLITE IMAGERY AND A 071236Z9 SSM/I PASS. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 90 KNOTS. THE LATEST MICROWAVE IMAGE DEPICTS A RAPID WEAKENING TREND AS THE SYSTEM INTERACTS WITH THE LONG WAVE SITUATED OVER THE CHINA COAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 041200Z7 IS 36 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 042100Z7, 050300Z8, 050900Z4 AND 051500Z1. REFER TO TYPHOON 08W (CHATAAN) WARNINGS (WTPN31 PGTW) FOR SIX-HOURLY UPDATES.// NNNN