WTPN31 PGTW 222100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL DEPRESSION 25W (TWENTYFIVE) WARNING NR 013 01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 221800Z --- NEAR 20.5N 117.9E MOVEMENT PAST SIX HOURS - 280 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND SYNOPTIC DATA PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 20.5N 117.9E --- FORECASTS: 12 HRS, VALID AT: 230600Z --- 19.9N 115.8E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 235 DEG/ 10 KTS --- 24 HRS, VALID AT: 231800Z --- 18.7N 114.0E MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 222100Z POSITION NEAR 20.3N 117.4E. 22OCT22. TROPICAL DEPRESSION (TD) 25W (TWENTYFIVE), LOCATED APPROXIMATELY 233 NM EAST-SOUTHEAST OF HONG KONG, HAS TRACKED WESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A SMALL BALL OF FLARING CONVECTION OBSCURING A WEAK LOW LEVEL CIRCULATION (LLC). RAIN BANDS HAVE MOSTLY DISPERSED; HOWEVER, COLD AIR STRATOCUMULUS FIELD, ASSOCIATED WITH THE NORTHEAST SURGE IN THE TAIWAN STRAIT INTO THE SOUTH CHINA SEA, IS CONTINUOUSLY INTRUDING INTO THE LLC.THE CURRENT POSITION IS PLACED WITH MEDIUM CONFIDENCE BY TRACING THE INITIALLY PARTLY-EXPOSED LLC BEFORE IT BECAME OBSCURED. THE INITIAL INTENSITY IS EXTRAPOLATED FROM SHIP OBSERVATIONS AS CLOSE AS 60NM TO THE WEST, LIKELY IN THE GRADIENT FLOW. PGTW CLASSIFIED THE DVORAK ESTIMATE AS TOO WEAK AND ALL OTHER FIXING AGENCIES HAVE STOPPED REPORTING AFTER CLASSIFYING IT AS TOO WEAK, AS WELL. TD 25W IS IN AN UNFAVORABLE ENVIRONMENT MOSTLY DUE TO THE COLD DRY AIR INTRUSION AT THE LOW LEVELS AND THE ABSENCE OF VENTILATION ALOFT. IT IS EXPECTED TO CONTINUE TO WEAKEN AND DISSIPATE BY TAU 12. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI.THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 221800Z IS 9 FEET.// NNNN