WTPN31 PGTW 050900 1. TYPHOON 22W (SAOMAI) WARNING NR 012 02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 050600Z1 --- NEAR 16.1N8 146.9E0 MOVEMENT PAST SIX HOURS - 275 DEGREES AT 12 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 - 030 NM NORTHEAST SEMICIRCLE 030 NM ELSEWHERE RADIUS OF 035 KT WINDS - 080 NM NORTHEAST SEMICIRCLE 060 NM ELSEWHERE REPEAT POSIT: 16.1N8 146.9E0 --- FORECASTS: 12 HRS, VALID AT: 051800Z4 --- 16.6N3 145.7E7 MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST SEMICIRCLE 030 NM ELSEWHERE RADIUS OF 035 KT WINDS - 080 NM NORTHEAST SEMICIRCLE 065 NM ELSEWHERE VECTOR TO 24 HR POSIT: 305 DEG/ 07 KTS --- 24 HRS, VALID AT: 060600Z2 --- 17.4N2 144.6E5 MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT RADIUS OF 050 KT WINDS - 035 NM RADIUS OF 035 KT WINDS - 085 NM NORTHEAST SEMICIRCLE 070 NM ELSEWHERE VECTOR TO 36 HR POSIT: 305 DEG/ 09 KTS --- 36 HRS, VALID AT: 061800Z5 --- 18.4N3 143.0E8 MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST SEMICIRCLE 035 NM ELSEWHERE RADIUS OF 035 KT WINDS - 085 NM NORTHEAST SEMICIRCLE 070 NM ELSEWHERE VECTOR TO 48 HR POSIT: 305 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 070600Z3 --- 19.4N4 141.6E2 MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 050 KT WINDS - 040 NM NORTHEAST SEMICIRCLE 040 NM ELSEWHERE RADIUS OF 035 KT WINDS - 090 NM NORTHEAST SEMICIRCLE 075 NM ELSEWHERE VECTOR TO 72 HR POSIT: 295 DEG/ 09 KTS --- 72 HRS, VALID AT: 080600Z4 --- 20.9N1 138.2E4 MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST SEMICIRCLE 030 NM ELSEWHERE RADIUS OF 035 KT WINDS - 090 NM NORTHEAST SEMICIRCLE 075 NM ELSEWHERE --- REMARKS: 050900Z4 POSITION NEAR 16.2N9 146.6E7. TYPHOON (TY) 22W (SAOMAI), LOCATED ABOUT 85 NM NORTHEAST OF SAIPAN, MARIANA ISLANDS, HAS TRACKED WESTWARD AT 12 KNOTS OVER THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 050630Z4 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 65 AND 77 KNOTS. INTENSITY HAS BEEN LOWERED SIGNIFICANTLY FROM THE PREVIOUS INTENSITY DUE TO A THOROUGH REANALYSIS OF SATELLITE IMAGERY. ANIMATED MULTI-SPECTRAL IMAGERY SHOWS AN AREA OF CONVECTION BEING SHEARED TO THE WEST AND RAPIDLY DISSIPATING. IMAGERY ALSO SHOWS A NEW AREA OF CONVECTION DEVELOPING EAST OF THE DISSIPATING CONVECTION. UW-CIMSS ANALYSIS INDICATES AN UPPERLEVEL ANTI-CYCLONE NORTHWEST OF THE SYSTEM IS CREATING A MODERATE EAST-NORTHEASTERLY VERTICAL WIND SHEAR ENVIRONMENT OVER TY 22W. TY 22W IS FORECAST TO TRACK WEST- NORTHWESTWARD THROUGH THE FORECAST PERIOD UNDER THE STEERING INFLUENCE OF THE SUBTROPICAL RIDGE TO THE NORTHEAST. THE SYSTEM IS FORECAST TO INTENSIFY SLOWLY AS IT MOVES INTO A MORE FAVORABLE ENVIRONMENT OVER THE NEXT 72 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050600Z1 IS 18 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 051500Z1 (DTG 051351Z5), 052100Z8 (DTG 051951Z1), 060300Z9 (DTG 060151Z3) AND 060900Z5 (DTG 060751Z9). REFER TO TROPICAL DEPRESSION 23W WARNINGS (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.// NNNN