WTPN31 PGTW 150900 1. TYPHOON 22W (SAOMAI) WARNING NR 052 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 150600Z2 --- NEAR 30.1N4 126.3E2 MOVEMENT PAST SIX HOURS - 040 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT RADIUS OF 050 KT WINDS - 060 NM RADIUS OF 035 KT WINDS - 150 NM 060 NM ELSEWHERE REPEAT POSIT: 30.1N4 126.3E2 --- FORECASTS: 12 HRS, VALID AT: 151800Z5 --- 32.5N0 128.1E2 MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 050 NM RADIUS OF 035 KT WINDS - 150 NM EAST SEMICIRCLE OVER WATER 135 NM ELSEWHERE OVER WATER VECTOR TO 24 HR POSIT: 005 DEG/ 23 KTS --- 24 HRS, VALID AT: 160600Z3 --- 37.0N0 128.6E7 MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 045 NM OVER WATER RADIUS OF 035 KT WINDS - 140 NM EAST SEMICIRCLE OVER WATER 125 NM ELSEWHERE OVER WATER VECTOR TO 36 HR POSIT: 015 DEG/ 14 KTS --- 36 HRS, VALID AT: 161800Z6 --- 39.7N9 129.5E7 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 030 NM RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE 115 NM ELSEWHERE OVER WATER VECTOR TO 48 HR POSIT: 020 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 170600Z4 --- 42.0N6 130.6E0 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT BECOMING EXTRATROPICAL RADIUS OF 035 KT WINDS - 130 NM SOUTHEAST SEMICIRCLE OVER WATER 100 NM ELSEWHERE OVER WATER VECTOR TO 72 HR POSIT: 040 DEG/ 13 KTS --- 72 HRS, VALID AT: 180600Z5 --- 45.7N6 135.3E2 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT EXTRATROPICAL --- REMARKS: 150900Z5 POSITION NEAR 30.7N0 126.8E7. TYPHOON (TY) 22W (SAOMAI), LOCATED APPROXIMATELY 195 NM SOUTH OF CHEJU ISLAND, SOUTH KOREA, AND HAS TRACKED NORTHEASTWARD AT 14 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 150530Z4 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 65 AND 77 KNOTS. ANIMATED SATELLITE IMAGERY INDICATES CLOUD TOPS HAVE CONTINUED TO WARM, AND SIGNIFICANT CONVECTION IS ISOLATED AROUND THE CENTER OF THE LOW LEVEL CIRCULATION. A 150143Z4 SPECIAL SENSOR MICROWAVE IMAGER (SSMI) PASS INDICATES WEAK CONVECTION ASSOCIATED WITH TY 22W. UW-CIMSS SATELLITE DERIVED WIND PRODUCTS INDICATE THE VERTICAL WIND SHEAR CONTINUES TO INCREASE OVER THE SYSTEM AS IT NEARS THE UPPER TO MID-LEVEL TROUGH TO THE NORTHWEST. TY 22W IS FORECAST TO TRACK NORTHEASTWARD THROUGH 12 HOURS, THEN NORTHWARD THROUGH 24 HOURS, UNDER THE STEERING INFLUENCE OF THE SUBTROPICAL RIDGE TO THE EAST. AFTER THIS TIME THE SYSTEM WILL TRACK INCREASINGLY NORTHEASTWARD AS IT MOVES INTO THE MID-LATITUDE FLOW. THE SYSTEM IS FORECAST TO WEAKEN AS IT MOVES INTO INCREASING VERTICAL WIND SHEAR, THEN BEGIN EXTRATROPICAL TRANSITION BY 24 HOURS. INTERACTION WITH LAND WILL ALSO SERVE TO WEAKEN THE SYSTEM AS IT COMPLETES EXTRATROPICAL TRANSITION WITHIN 72 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 150600Z2 IS 32 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 151500Z2 (DTG 151351Z6), 152100Z9 (DTG 151951Z2), 160300Z0 (DTG 160151Z4) AND 160900Z6 (DTG 160751Z0). REFER TO TROPICAL STORM 25W (SONAMU) WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN